Relevant bibliographies by topics / Neutrino oscillation

Academic literature on the topic 'Neutrino oscillation'

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Published: 4 June 2021
Last updated: 10 March 2023

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Journal articles on the topic "Neutrino oscillation"

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Louis, W. C. "Evidence and Search for Sterile Neutrinos at Accelerators." Advances in High Energy Physics 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/439532.

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The LSND short-baseline neutrino experiment has published evidence for antineutrino oscillations at a mass scale of ~1 eV2. The MiniBooNE experiment, designed to test this evidence for oscillations at an order of magnitude higher neutrino energy and distance, observes excesses of events in both neutrino mode and antineutrino mode. While the MiniBooNE neutrino excess has a neutrino energy spectrum that is softer than expected from LSND, the MiniBooNE antineutrino excess is consistent with neutrino oscillations and with the LSND oscillation signal. When combined with oscillation measurements at the solar and atmospheric mass scales, assuming that the LSND and MiniBooNE signals are due to neutrino oscillations, these experiments imply the existence of more than three neutrino mass states and, therefore, one or more sterile neutrinos. Such sterile neutrinos, if proven to exist, would have a big impact on particle physics, nuclear physics, and astrophysics and would contribute to the dark matter of the universe. Future experiments under construction or proposed at Fermilab, ORNL, CERN, and in Japan will provide a definitive test of short-baseline neutrino oscillations and will have the capability of proving the existence of sterile neutrinos.
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BILENKY, S. M. "NEUTRINOS: A BRIEF REVIEW." Modern Physics Letters A 19, no. 33 (October 30, 2004): 2451–77. http://dx.doi.org/10.1142/s0217732304015944.

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The major steps in the development of our knowledge about neutrinos are reviewed. The basics of neutrino oscillation formalism is presented. Neutrino oscillations in the framework of three-neutrino mixing are considered. The evidence for neutrino oscillations is discussed. Neutrinoless double β-decay is briefly considered.
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Abdullaeva, Umsalimat, Vadim Shakhov, Alexander Studenikin, and Alexander Tsvirov. "Dirac and Majorana neutrino oscillations in magnetized moving and polarized matter." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012229. http://dx.doi.org/10.1088/1742-6596/2156/1/012229.

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Abstract In the present paper we develop the quantum theory of neutrino spin and spin-flavour oscillations in moving magnetized matter with a special focus on the effects of matter polarization. We derive an effective neutrino evolution Hamiltonian and corresponding expressions for the neutrino oscillation probabilities. Both the case of Dirac and Majorana neutrinos are considered. From the comparison of the neutrino spin oscillation probabilities in the transversally moving matter for the Dirac and Majorana neutrinos it follows that the oscillation patterns is different for theses two cases. In particular, the conditions for the resonances in these two cases are realized at different densities of matter.
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BILENKY, S. M., C. GIUNTI, and C. W. KIM. "FINALLY NEUTRINO HAS MASS." International Journal of Modern Physics A 15, no. 05 (February 20, 2000): 625–50. http://dx.doi.org/10.1142/s0217751x00000318.

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The present status of the problem of neutrino mass, mixing and neutrino oscillations is briefly summarized. The evidence for oscillations of atmospheric neutrinos found recently in the Super-Kamiokande experiment is discussed. Indications in favor of neutrino oscillations obtained in solar neutrino experiments and in the accelerator LSND experiment are also considered. Implications of existing neutrino oscillation data for neutrino masses and mixing are discussed.
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MA, BO-QIANG. "NEUTRINO OSCILLATIONS: FROM STANDARD AND NON-STANDARD VIEWPOINTS." International Journal of Modern Physics: Conference Series 01 (January 2011): 291–96. http://dx.doi.org/10.1142/s2010194511000420.

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In the standard model of neutrino oscillations, the neutrino flavor states are mixtures of mass-eigenstates, and the phenomena are well described by the neutrino mixing matrix, i.e., the PMNS matrix. I review the recent progress on parametrization of the neutrino mixing matrix. Besides that I also discuss on the possibility to describe the neutrino oscillations by a non-standard model in which the neutrino mixing is caused by the Lorentz violation (LV) contribution in the effective field theory for LV. We assume that neutrinos are massless and that neutrino flavor states are mixing states of energy eigenstates. In our calculation the neutrino mixing parts depend on LV parameters and neutrino energy. The oscillation amplitude varies with the neutrino energy, thus neutrino experiments with energy dependence may test and constrain the Lorentz violation scenario for neutrino oscillation.
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Kajita, Takaaki. "Atmospheric Neutrinos." Advances in High Energy Physics 2012 (2012): 1–24. http://dx.doi.org/10.1155/2012/504715.

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Atmospheric neutrinos are produced as decay products in hadronic showers resulting from collisions of cosmic rays with nuclei in the atmosphere. Electron-neutrinos and muon-neutrinos are produced mainly by the decay chain of charged pions to muons to electrons. Atmospheric neutrino experiments observed zenith angle and energy-dependent deficit of muon-neutrino events. It was found that neutrino oscillations between muon-neutrinos and tau-neutrinos explain these data well. This paper discusses atmospheric neutrino experiments and the neutrino oscillation studies with these neutrinos.
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INOUE, K. "REACTOR NEUTRINO EXPERIMENTS." International Journal of Modern Physics A 19, no. 08 (March 30, 2004): 1157–66. http://dx.doi.org/10.1142/s0217751x04019081.

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Previous searches for neutrino oscillations with reactor neutrinos have been done only with baselines less than 1 km. The observed neutrino flux was consistent with the expectation and only excluded regions were drawn on the neutrino-oscillation-parameter space. Thus, those experiments played important roles in understanding neutrinos from fission reactors. Based on the knowledge from those experiments, an experiment with about a 180 km baseline became possible. Results obtained from this baseline experiment showed evidence for reactor neutrino disappearance and finally provide a resolution for the long standing solar neutrino problem when combined with results from the solar neutrino experiments. Several possibilities to explore the last unmeasured mixing angle θ13 with reactor neutrinos have recently been proposed. They will provide complementary information to long baseline accelerator experiments when one tries to solve the degeneracy of oscillation parameters. Reactor neutrinos are also useful to study the neutrino magnetic moment and the most stringent limits from terrestrial experiments are obtained by measuring the elastic scattering cross section of reactor neutrinos.
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Kisslinger, Leonard S. "Review of neutrino oscillations with sterile and active neutrinos." International Journal of Modern Physics A 31, no. 23 (August 20, 2016): 1630037. http://dx.doi.org/10.1142/s0217751x16300374.

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Recently neutrino oscillation experiments have shown that it is very likely that there are one or two sterile neutrinos. In this review neutrino oscillations with one, two, three sterile and three active neutrinos, and parameters that are consistent with experiments, are reviewed.
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BARGER, V., D. MARFATIA, and K. WHISNANT. "PROGRESS IN THE PHYSICS OF MASSIVE NEUTRINOS." International Journal of Modern Physics E 12, no. 05 (October 2003): 569–647. http://dx.doi.org/10.1142/s0218301303001430.

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The current status of the physics of massive neutrinos is reviewed with a forward-looking emphasis. The article begins with the general phenomenology of neutrino oscillations in vacuum and matter and documents the experimental evidence for oscillations of solar, reactor, atmospheric and accelerator neutrinos. Both active and sterile oscillation possibilities are considered. The impact of cosmology (BBN, CMB, leptogenesis) and astrophysics (supernovae, highest energy cosmic rays) on neutrino observables and vice versa, is evaluated. The predictions of grand unified, radiative and other models of neutrino mass are discussed. Ways of determining the unknown parameters of three-neutrino oscillations are assessed, taking into account eight-fold degeneracies in parameters that yield the same oscillation probabilities, as well as ways to determine the absolute neutrino mass scale (from beta-decay, neutrinoless double-beta decay, large scale structure and Z-bursts). Critical unknowns at present are the amplitude of νμ→νe oscillations and the hierarchy of the neutrino mass spectrum; the detection of CP violation in the neutrino sector depends on these and on an unknown phase. The estimated neutrino parameter sensitivities at future facilities (reactors, superbeams, neutrino factories) are given. The overall agenda of a future neutrino physics program to construct a bottom-up understanding of the lepton sector is presented.
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Pascoli, Silvia, and Thomas Schwetz. "Prospects for Neutrino Oscillation Physics." Advances in High Energy Physics 2013 (2013): 1–29. http://dx.doi.org/10.1155/2013/503401.

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Recently the last unknown lepton mixing angleθ13has been determined to be relatively large, not too far from its previous upper bound. This opens exciting possibilities for upcoming neutrino oscillation experiments towards addressing fundamental questions, among them the type of the neutrino mass hierarchy and the search for CP violation in the lepton sector. In this paper we review the phenomenology of neutrino oscillations, focusing on subleading effects, which will be the key towards these goals. Starting from a discussion of the present determination of three-flavour oscillation parameters, we give an outlook on the potential of near-term oscillation physics as well as on the long-term program towards possible future precision oscillation facilities. We discuss accelerator-driven long-baseline experiments as well as nonaccelerator possibilities from atmospheric and reactor neutrinos.
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Dissertations / Theses on the topic "Neutrino oscillation"

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Sibille, Valérian. "Mesure de l'angle de mélange θ₁₃ avec les deux détecteurs de Double Chooz." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS582/document.

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L'expérience Double Chooz a pour but de mesurer l'angle de mélange leptonique θ₁₃ avec précision. Pour ce faire, l'expérience met à profit deux détecteurs identiques -- remplis de liquide scintillant dopé au gadolinium -- afin d'étudier les $antinue$ produits par les deux réacteurs nucléaires de 4.25GWth de la centrale de Chooz. Le détecteur lointain -- situé à une distance moyenne de $SI{1050}{m}$ des coeurs -- prend des données depuis Avril 2011. Le détecteur proche -- à une distance moyenne de 400m des coeurs -- observe les réacteurs depuis Décembre 2014. Le paramètre de mélange θ₁₃ conduit à la disparition d'$antinue$, lorsque ceux-ci voyagent des coeurs jusqu'aux sites de détection; la dépendance en énergie de ce déficit permet d'extraire la valeur de sin² 2θ₁₃, par ajustement. Les systématiques de détection, ainsi que l'incertitude sur la prédiction du flux $antinue$, sont formidablement réduites par le biais de corrélations entre les détecteurs et la configuration iso-flux du site. Par conséquent, la précision relative à la mesure de θ₁₃ est dominée par les incertitudes sur les bruits de fond et sur la normalisation relative des taux d'$antinue$. Le bruit de fond principal provient de la désintégration des émetteurs βn -- produits par spallation des muons -- dans le détecteur lui-même. Les spectres de ces isotopes cosmogéniques ont été simulés et complétés par un traitement d'erreur rigoureux. Ces prédictions sont en bon accord avec les données, elles-mêmes extraites à l'aide d'un veto actif, dont la performance a été étudiée pour les deux sites. Le taux d'évènements cosmogéniques restant parmi les candidats $antinue$ a également été estimé. En outre, la normalisation relative du taux d'$antinue$, liée aux nombres de protons dans les cibles de chaque détecteur, a été évaluée. Tous ces travaux se sont inscrits au sein des premières analyses Double Chooz à l'aide de deux détecteurs, produisant sin² (2θ₁₃) = 0.111±0.018
The Double Chooz experiment aims at accurately measuring the value of the leptonic mixing angle θ₁₃. To this intent, the experiment makes the most of two identical detectors -- filled with gadolinium-loaded liquid scintillator -- observing $antinue$'s released by the two 4.25GWth nuclear reactors of the French Chooz power plant. The so-called "far detector" -- located at an average distance of 1050m from the two nuclear cores -- has been taking data since April 2011. The "near detector" -- at an average distance of 400}m from the cores -- has monitored the reactor since December 2014. The θ₁₃ mixing parameter leads to an energy dependent disappearance of $antinue$'s as they propagate from the nuclear cores to the detection sites, which allows for a fit of the sin² 2θ₁₃ value. By reason of correlations between the detectors and an iso-flux site layout, the detection systematics and the $antinue$ flux uncertainty on the θ₁₃ measurement are dramatically suppressed. In consequence, the precision of the θ₁₃ measurement is dominated by the uncertainty on the backgrounds and the relative normalisation of the $antinue$-rates. The main background originates from the decay of βn-emitters -- generated by $mu$-spallation -- within the detector itself. The energy spectra of these cosmogenic isotopes have been simulated and complemented by a diligent error treatment. These predictions have been successfully compared to the corresponding data spectra, extracted by means of an active veto, whose performance has been studied at both sites. The rate of cosmogenic background remaining within the $antinue$ candidates has also been assessed. Addtionally, the normalisation of the $antinue$ rates, bound to the number of target protons within each detector, has been evaluated. All these works were part of the first Double Chooz multi-detector results, yielding sin² (2θ₁₃) = 0.111±0.018
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Manzanillas, Luis. "Development of the source calibration system of the STEREO experiment and search for sterile neutrinos at the ILL." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY079/document.

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L'expérience STEREO a été proposé afin de donner une réponse sans ambiguïté àl'idée d'un état de neutrino stérile léger ($Delta m^{2}sim 1eV^{2}$) comme l'origine del'anomalie réacteur des antineutrinos. Le but de l'expérience est de confirmer ou de rejetercette hypothèse en recherchant un patron d'oscillation à courte distance (9-11 m) dans lespectre en énergie des $overline{nu_{e}}$'s émis par le réacteur nucléaire de recherchede l'Institut Laue-Langevin à Grenoble (France). A cet effet, le détecteur estcomposé de 2 tonnes du liquide scintillant dopé au Gd et lu par un réseau detubes photomultiplicateurs, et est segmenté en 6 cellules dans la direction depropagation des antineutrinos. Les $overline{nu_{e}}$'s sont détectés par le processusIBD en observant un signal corrélé dans letemps d'un dépôt d'énergie rapide d'un positron et un signal retardé produitpar la capture d'un neutron. La mesure des petites oscillations deformantle spectre d'énergie des antineutrinos nécessite une bonne résolution en énergieet une excellente connaissance de la réponse du détecteur. Ce manuscrit présenteune étude de simulation détaillée basée sur le logiciel Geant4 STEREO, ce quia permis le développement du système de calibration par sources. Ce système aété conçu pour répondre à toutes les exigences physiques de STEREO: calibrerl'échelle de l'énergie et de l'efficacité de capture de neutrons au niveau de 2%,connaître la réponse en énergie dans le spectre d'énergie réacteur antineutrino(1-8 MeV), étudier et la caractériser la réponse et des non-uniformités dudétecteur. A cet effet, on propose un système de calibration consistant en trois sous-systèmes:un sous-système automatisé pour déplacer des sources radioactives autour dudétecteur pour calibrer l'échelle en énergie dans chaque cellule de manièreindépendante. Un second sous-système pour déplacer une source AmBe sous ledétecteur, dont l'objectif est d'inter-calibrerl'efficacité de capture de neutrons entre les cellules. Enfin, un troisième systèmemanuel qui consistent en trois tubes de calibration placés à l'intérieur du liquidescintillante pour évaluer l'efficacité absolue de la capture des neutrons danstrois cellules différentes. La dernièrepartie de ce manuscrit est consacré à l'étude et la caractérisation du bruite de fond gammaet les signaux neutrino attendus
The STEREO experiment has been proposed to give an unambiguous responseto the hypothesis of a light sterile neutrino state ($Delta m^{2}sim 1 eV^{2}$)as the origin of the reactor antineutrino anomaly. Its goal is to confirm or reject thishypothesis by searching at short distance (9-11 m) for a neutrino oscillation patternin the energy spectrum of the $overline{nu_{e}}$’s emitted by the research nuclear reactorof the Laue-Langevin Institute in Grenoble (France). To this end, the detector iscomposed of 2 tons of Gd-loaded liquid scintillator read out by an array of PMTs, andis segmented in 6 cells in the direction of the $overline{nu_{e}}$’s propagation. Antineutrinosare detected via the IBD process by observing a time correlatedsignal composed of a prompt energy deposit from a positron and a delayed signal produced bythe neutron capture. Measuring small oscillations superimposed on the reactor antineutrinoenergy spectrum requires a good energy resolution and an excellent knowledge ofthe detector response. This manuscript presents a dedicated Geant4 simulation studyof a calibration system based on radioactive sources.This system has been conceived to fulfill all the STEREO physics requirements:calibrating the energy scale and the neutron capture efficiency at the 2 % level,knowing the energy response in the reactor antineutrino energy spectrum (0-8 MeV),and characterizing the detector response in a broader sense (non-uniformities, non-linearity,particle identification, etc). To this end, we proposethree calibration subsystems: one automated subsystem to moveradioactive sources around the detector, whose main role is to calibrate the energy scale in each cellindependently; a second subsystem to inter-calibrate the neutron captureefficiency between cells by moving an AmBe source under the detector; and finally,a third subsystem consisting in three manualcalibration tubes inside the liquid scintillator, necessary to assess the absolute neutron captureefficiency inside three different cells. The final part of this manuscript is devoted tothe study of the selection criteria, and the proposal of methods to reject the expected gammabackground
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Nakamura, Keigo. "Measurement of Neutrino Oscillation with a High Intensity Neutrino Beam." Kyoto University, 2019. http://hdl.handle.net/2433/236602.

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Iyer, Sharada Ramalingham. "A novel approach in the detection of muon neutrino to tau neutrino oscillation from extragalactic neutrinos." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/290068.

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A novel approach is proposed for studying the ν(μ) → ν(τ) oscillation and detection of extragalactic neutrinos. Active Galactic Nuclei (AGN), Gamma Ray Bursters (GRB) and Topological Defects are believed to be sources of ultrahigh energy ν(μ) and νₑ. These astrophysical sources provide a long baseline of 100Mpc, or more, for possible detection of ν(μ) → ν(τ) oscillation with mixing parameter Δm² down to 10⁻¹⁷ eV², many orders of magnitude below the current accelerator experiments. The propagation characteristics of upward going muon and tau neutrinos is studied to show that high energy tau neutrinos cascade down in energy as they propagate through the Earth, producing an enhancement of the incoming tau neutrino flux in the low energy region. By contrast, high energy muon neutrinos get attenuated as they traverse the Earth. It is observed that the relative steepness of the incoming neutrino flux spectrum and the nadir angle of the Earth are two important factors that influence the enhancement and cascade of nutau flux. This effect provides a novel way to search for tau neutrino appearance by measuring the angular dependence of tau neutrino induced upward muons; and upward hadronic and electromagnetic showers. A Monte Carlo evaluation of tau survival probability and its range shows that at energies below 10⁷ - 10⁸ GeV, depending on the material, only tau decays are important. However, at higher energies the tau energy losses are significant, hence reducing the survival probability of tau. Here, tau energy loss for energies up to 10⁹ GeV have been calculated taking into consideration the decay of tau. An understanding of tau energy loss at very high energies could help with the interpretation of long tracks produced by charged particles in large underground detectors.
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Salagnac, Thomas. "Recherche d'un neutrino stérile avec l'expérience STEREO : développement de l'électronique et identification des neutrinos." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAY068/document.

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Depuis 2011, la réévaluation de plus d’une vingtaine de mesures de flux de neutrinos de réacteur mesurés à courtes distances suggère la présence d’un déficit de 7 % par rapport aux prédictions. Cette anomalie est statistiquement significative à environ 3 sigmas, tout comme une autre anomalie similaire correspondant à l’observation d’un déficit de neutrinos émis par des sources intenses de désintégrations beta. Ces anomalies peuvent être expliquées soit par un biais dans la prédiction des flux de neutrinos, soit par l’existence d’un nouvel état de neutrino, un neutrino stérile léger, vers lequel les trois neutrinos du modèle standard pourraient osciller. Ce nouveau neutrino, n’interagissant pas par interaction faible, serait uniquement « visible » grâce à ces oscillations. L’objectif de l’expérience STEREO est de répondre à la question de l’existence d'un neutrino stérile avec une masse de l’ordre de 1 eV, en utilisant le flux de neutrinos émis par le réacteur de recherche de l’« Institut Laue-Langevin » (ILL) à Grenoble, en France. Pour cela, le détecteur STEREO est segmenté en 6 cellules afin de mesurer l’hypothétique distorsion du spectre en énergie des neutrinos en fonction de la distance au réacteur (entre 9 et 11m de distance). Après quelques années de construction du détecteur et de préparation, l’expérience STEREO a pu commencer la prise de données en novembre 2016 avec une premier période d’acquisition qui s’est terminée en mars 2017. Cette thèse s’inscrit dans ces deux périodes distinctes de l’expérience STEREO. Une première partie a été consacrée à la caractérisation et la validation de l’électronique tout au long du processus de développement jusqu’à sa conception finale. Dans ce cadre, une méthode de mesure de la linéarité de la réponse en charge des photomultiplicateurs et de leurs embases a été développée avec une précision meilleure que 1 %, pour répondre au exigence de sensibilité à l’hypothèse d’un neutrino stérile. Cette exigence a d'ailleurs été validée par une analyse statistique de l’expérience. Une deuxième partie de la thèse a concerné l’analyse des premières données et plus particulièrement, l’identification des différents types de bruit de fond et la recherche des candidats neutrinos
Since 2011, the re-evaluation of about twenty neutrino flux measurements at short distance from reactors suggests a deficit of about 7 % with respect to predictions. This anomaly has a 3 sigmas significance, as another similar anomaly which corresponds to the deficit of neutrinos emitted from intense source of beta-decay. These anomalies could be explain either by a bias in the flux prediction or by the existence of a new neutrino state, a light sterile neutrino, possibly mixing with the three neutrino states of the standard model. This new neutrino, with no ordinary weak interaction, could only be “visible” via the neutrino oscillation. The STEREO experiment goal is to answer the question of the sterile neutrino existence with mass around 1 eV, using neutrino flux emitted from the research reactor of the « Institut Laue-Langevin » (ILL) at Grenoble, France. To achieve this, the STEREO detector is segmented in 6 cells to measure a hypothetical distortion of the neutrino energy spectrum at different distances from the reactor (between 9 et 11m). Afters few years of detector construction and preparation, the STEREO experiment has started taking data in November 2016 with a first period over in Mars 2017. This thesis took place during two distinct phases of the STEREO experiment. A first part was dedicated to the characterisation and the validation of the electronics, during all its development process until its final conception. In this context, a method to measure the charge response linearity of photomultipliers and their bases, with a precision better than 1 %, has been developed, in order to fulfill the desired sensitivity to the light sterile neutrino hypothesis. This requirement on the precision has been validated by a statistical analysis of the experiment. The second part of the thesis was devoted to the analysis of the first data and more particularly to the identification of the different kinds of background and to the search of neutrino candidates
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Shiraishi, Kiyoshi Keola. "Super-kamiokande atmospheric neutrino analysis of matter-dependent neutrino oscillation models /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/9771.

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Wang, Tse-Chun. "New physics at the neutrino oscillation frontier." Thesis, Durham University, 2018. http://etheses.dur.ac.uk/12549/.

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The discovery of neutrino oscillations implies that neutrinos are massive, and therefore is a concrete evidence that the standard model (SM), which forbids the mass of neutrinos, is not complete. As a consequence, completing the knowledge of neutrino oscillations extends our understanding of new physics. We are entering the age of precision measurement of neutrino oscillations, with the preparation for the upcoming Long Baseline experiments (LBL) — Deep Underground Neutrino Experiment (DUNE) and Tokai to Hyper-Kamiokande (T2HK). In this thesis, we firstly study how DUNE, T2HK and the combination solve the remaining problems of the standard neutrino oscillation — octant and mass ordering degeneracy problems, if CP violates, and what the value of CP phase δ is. In the following, we study how Littlest Seesaw Models (LS) can be tested by DUNE, T2HK together with short- and medium-baseline reactor experiments, after fitting these models with the current global results. In the next half of this thesis, we extend our discussion to allow external interactions — nonstandard interactions (NSIs) in matter for DUNE. After reviewing current studies on the precision of NSI-parameter measurement, we discuss the exclusion ability of DUNE to the SM prediction over the possible scenarios. Considering NSIs are flavour-dependent, we demonstrate the possible correlations between or among NSI effects under flavour symmetries A4 and Z2. Based on these correlations, we present how DUNE can test flavour symmetries A4 and Z2 through NSIs. Our results show the experimental properties of DUNE and T2HK, and how they perform for the theory of flavour symmetry.
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Wilkinson, Callum. "Constraining neutrino interaction uncertainties for oscillation experiments." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/9198/.

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Neutrinos rarely interact, but sometimes they do. How much? And does it matter? Charged-Current Quasi-Elastic (CCQE) neutrino-nucleus interactions are the main signal channel for T2K and other currently running neutrino oscillation experiments, but in recent years, with a number of experimental results, it has become clear that these interactions are not as well understood at few-GeV neutrino energies as was previously thought. This thesis focuses on the impact that this uncertainty will have on neutrino oscillation measurements. Published CCQE and the closely related Neutral-Current Elastic (NCEL) cross section results from the MiniBooNE experiment are used to fit a 3+1 sterile neutrino model, and the uncertainty over fundamental parameters in the cross section model used is shown to badly bias the results. Conservative sterile neutrino limits which treat the cross section uncertainty correctly are used, and a general note of caution is sounded over sterile neutrino results which make tacit and unfounded assumptions about the neutrino cross section model. New theoretical models of CCQE scattering which try to explain the experimental situation have become available, some of which have been implemented into NEUT, T2K's primary interaction generator. Two candidate models are used in a fit to all published CCQE data on nuclear targets to select a default model and constrain the parameters of that model in order to increase the sensitivity of T2K oscillation analyses. This CCQE parametrisation will be used for T2K oscillation analyses from the summer of 2015 onwards. The fit framework developed for this work has been integrated into the T2K oscillation analysis framework for future iterations. Additionally, the implementation of one such model, the Effective Spectral Function is described and compared with the available neutrino-nucleus scattering data.
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Kato, Issei. "Indications of neutrino oscillation in K2K experiment." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/145479.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(理学)
甲第11175号
理博第2843号
新制||理||1425(附属図書館)
22759
UT51-2004-T144
京都大学大学院理学研究科物理学・宇宙物理学専攻
(主査)教授 西川 公一郎, 教授 今井 憲一, 教授 谷森 達
学位規則第4条第1項該当
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Duffy, Kirsty. "Measurement of the neutrino oscillation parameters sin²θ23 Δm²32, sin²θ13, and σCP in neutrino and antineutrino oscillation at T2K." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:4485185d-3f72-49d0-866c-af2bab55d916.

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The T2K experiment is a long-baseline neutrino oscillation experiment, in which a muon neutrino beam is directed over a 295 km baseline from the J-PARC facility to the Super-Kamiokande detector. This allows neutrino oscillation to be studied in two channels: disappearance of νμ and appearance of νe. The T2K beam can be run either in neutrino or antineutrino configuration, for a neutrino beam which is predominantly composed of νμ or anti -νμ respectively. This thesis presents the first oscillation analysis to combine neutrino-mode and antineutrino-mode data sets, giving the first ever sensitivity to the CP-violating phase δCP from T2K data alone, as well as the most precise T2K measurement of the other neutrino oscillation parameters. The analysis uses a Markov Chain Monte Carlo method to construct a sample from the Bayesian posterior distribution, from which the oscillation parameters of interest and their uncertainties are estimated. Data samples from the T2K near detector, ND280, are fit simultaneously with data from the far detector in order to reduce the uncertainty in the far-detector prediction. When fitting the T2K data alone, the best-fit oscillation parameter values are sin2 θ23= 0.519+0.031-0.059, sin2 θ13= 0.0257+0.0106-0.0440, Δm232= 2.54+0.12-0.10 x 10-3eV2,and δCP=-1.91 rad. The 90% credible interval for δCP excludes values around π/2: δCP ∉ [0.38, 2.60] rad. When fitting the T2K data with a constraint on sin2 θ13 from measurements by reactor experiments, the best-fit oscillation parameter values are sin2 θ23= 0.519+0.061-0.029, sin2 θ13= +0.0014-0.0014, Dm232= 2.54+0.12-0.12 x 10-3eV2, and δCP=-1.72 rad. The 90% credible interval for δCP contains values δCP ∈ [-3.10,-0.17] rad, excluding the CP-conserving values 0 and ± π at 90% probability.
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Books on the topic "Neutrino oscillation"

1

Junqueira de Castro Bezerra, Thiago. Double Chooz and Reactor Neutrino Oscillation. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55375-5.

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Neutrino Oscillation Workshop (2004 Otranto, Italy). NOW 2004: Proceedings of the Neutrino Oscillation Workshop : Conca Specchiulla, Otranto, Italy, 11-17 September 2004. [Amsterdam]: Elsevier, 2005.

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Neutrino Oscillation Workshop (2004 Otranto, Italy). NOW 2004: Proceedings of the Neutrino Oscillation Workshop, Conca Specchiulla, Otranto, Italy, 11-17 September 2004. Amsterdam: Elsevier, 2005.

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Duffy, Kirsty Elizabeth. First Measurement of Neutrino and Antineutrino Oscillation at T2K. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65040-1.

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Vladisavljevic, Tomislav. Predicting the T2K Neutrino Flux and Measuring Oscillation Parameters. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51174-6.

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United States. High Energy Physics Advisory Panel. Subpanel on Accelerator-Based Neutrino Oscillation Experiments. High Energy Physics Advisory Panel, Subpanel on Accelerator-Based Neutrino Oscillation Experiments. Washington, D.C: U.S. Dept. of Energy, Office of Energy Research, Division of High Energy Physics, 1995.

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Europhysics, Neutrino Oscillation Workshop (2000 Otranto Italy). NOW 2000: Proceedings of the Europhysics Neutrino Oscillation Workshop : Otranto, Italy, 9-16 September 2000. [Netherlands]: North-Holland, 2001.

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Suekane, Fumihiko. Neutrino Oscillations. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55462-2.

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Fritzsch, Harald. Massive neutrinos: Flavor mixing of leptons and neutrino oscillations. Singapore: World Scientific, 2015.

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Workshop on Neutrino Oscillations and their Origin (1st 2000 Fujiyoshida, Japan). Neutrino oscillations and their origin: Proceedings of the 1st Workshop on Neutrino Oscillations and their Origin, held on February 11-13, 2000, in Japan. Tokyo, Japan: Universal Academy Press, 2000.

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Book chapters on the topic "Neutrino oscillation"

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Suekane, Fumihiko. "Neutrino Oscillation." In Neutrino Oscillations, 45–75. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55462-2_4.

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Junqueira de Castro Bezerra, Thiago. "Neutrino Oscillation." In Double Chooz and Reactor Neutrino Oscillation, 5–31. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55375-5_2.

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Suekane, Fumihiko. "Future Possibilities of Neutrino Oscillation Experiments." In Neutrino Oscillations, 129–54. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55462-2_7.

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Bilenky, Samoil. "Neutrino Oscillation Experiments." In Introduction to the Physics of Massive and Mixed Neutrinos, 175–207. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74802-3_11.

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Bilenky, Samoil. "Neutrino Oscillation Experiments." In Introduction to the Physics of Massive and Mixed Neutrinos, 165–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14043-3_10.

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Louis, W. C. "LSND Neutrino Oscillation Results." In Neutrino Mass, Dark Matter, Gravitational Waves, Monopole Condensation, and Light Cone Quantization, 103–9. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-1564-1_12.

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Duffy, Kirsty Elizabeth. "Introduction to Neutrino Oscillation." In First Measurement of Neutrino and Antineutrino Oscillation at T2K, 5–29. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65040-1_2.

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Suekane, Fumihiko. "Neutrino Oscillation: Relativistic Oscillation of Three-Flavor System." In Quantum Oscillations, 145–60. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70527-5_12.

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Valle, J. W. F. "Weak Interactions and Solar Neutrinos: Testing the Oscillation Hypothesis." In Neutrino Physics, 258–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73679-7_26.

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Junqueira de Castro Bezerra, Thiago. "Measurement of Neutrino Oscillation Parameters." In Double Chooz and Reactor Neutrino Oscillation, 151–85. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55375-5_5.

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Conference papers on the topic "Neutrino oscillation"

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Zhou, Shun. "Relic Right-handed Dirac Neutrinos and Cosmic Neutrino Background." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0088.

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Smirnov, Alexei. "Neutrino oscillations unlocked." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.421.0001.

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Magaletti, Lorenzo. "T2K oscillation results." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0003.

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Gilje, Karin. "Sterile at reactors: PROSPECT." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0032.

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Sala, Elena. "The AMoRE project status." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0073.

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Zavatarelli, Sandra. "Recent solar and geo- n results from Borexino." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0013.

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Buck, Christian. "The Double Chooz experiment." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0007.

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DWYER, Daniel. "Estimation of reactor neutrino fluxes." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0008.

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Nieves, Juan. "QE-like scattering and neutrino energy reconstruction." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0009.

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Galati, Giuliana. "Neutrino oscillations with the OPERA experiment." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0010.

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Reports on the topic "Neutrino oscillation"

1

Kayser, Boris. Neutrino Oscillation Physics. Office of Scientific and Technical Information (OSTI), June 2012. http://dx.doi.org/10.2172/1044932.

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Louis, W. C. LSND neutrino oscillation results. Office of Scientific and Technical Information (OSTI), October 1996. http://dx.doi.org/10.2172/392751.

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Louis, W. C. LSND neutrino oscillation results. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/245666.

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Federspiel, F. Design of a neutrino oscillation experiment. Office of Scientific and Technical Information (OSTI), October 1996. http://dx.doi.org/10.2172/380315.

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Martinez Soler, Ivan Jesus. The Global Three-Neutrino Oscillation Picture. Office of Scientific and Technical Information (OSTI), December 2018. http://dx.doi.org/10.2172/1511666.

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Sachdev, Kanika. Muon Neutrino to Electron Neutrino Oscillation in NO$\nu$A. Office of Scientific and Technical Information (OSTI), August 2015. http://dx.doi.org/10.2172/1221367.

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Monroe, Jocelyn Rebecca. A combined muon-neutrino and electron-neutrino oscillation search at MiniBooNE. Office of Scientific and Technical Information (OSTI), January 2006. http://dx.doi.org/10.2172/899985.

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Lipkin, H. J. Stodolsky's theorem and neutrino oscillation phases-for pedestrians. Office of Scientific and Technical Information (OSTI), February 2003. http://dx.doi.org/10.2172/808429.

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O'Donnell, Thomas. Precision Measurement of Neutrino Oscillation Parameters with KamLAND. Office of Scientific and Technical Information (OSTI), December 2011. http://dx.doi.org/10.2172/1082203.

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Kayser, B. The frequency of neutral meson and neutrino oscillation. Office of Scientific and Technical Information (OSTI), March 1997. http://dx.doi.org/10.2172/666171.

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