Relevant bibliographies by topics / Radio Astronomy;neutrino;neutrino oscillation

Academic literature on the topic 'Radio Astronomy;neutrino;neutrino oscillation'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Radio Astronomy;neutrino;neutrino oscillation"

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Shakhov, Vadim, Konstantin Stankevich, and Alexander Studenikin. "Spin and spin-flavor oscillations due to neutrino charge radii interaction with an external environment." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012241. http://dx.doi.org/10.1088/1742-6596/2156/1/012241.

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Abstract We derive the effective neutrino evolution Hamiltonian and corresponding expressions for the neutrino flavour and spin-flavour oscillation probabilities accounting for the neutrino interactions with an external electric current though the neutrino charge radius and anapole moment. The obtained results are of interest for neutrino astrophysical applications.
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HOROWITZ, C. J. "MULTI-MESSENGER OBSERVATIONS OF NEUTRON-RICH MATTER." International Journal of Modern Physics E 20, no. 10 (October 2011): 2077–100. http://dx.doi.org/10.1142/s0218301311020332.

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At very high densities, electrons react with protons to form neutron-rich matter. This material is central to many fundamental questions in nuclear physics and astrophysics. Moreover, neutron-rich matter is being studied with an extraordinary variety of new tools such as Facility for Rare Isotope Beams (FRIB) and the Laser Interferometer Gravitational Wave Observatory (LIGO). We describe the Lead Radius Experiment (PREX) that uses parity violating electron scattering to measure the neutron radius in 208Pb. This has important implications for neutron stars and their crusts. We discuss X-ray observations of neutron star radii. These also have important implications for neutron-rich matter. Gravitational waves (GW) open a new window on neutron-rich matter. They come from sources such as neutron star mergers, rotating neutron star mountains, and collective r-mode oscillations. Using large scale molecular dynamics simulations, we find neutron star crust to be very strong. It can support mountains on rotating neutron stars large enough to generate detectable gravitational waves. Finally, neutrinos from core collapse supernovae (SN) provide another, qualitatively different probe of neutron-rich matter. Neutrinos escape from the surface of last scattering known as the neutrino-sphere. This is a low density warm gas of neutron-rich matter. Neutrino-sphere conditions can be simulated in the laboratory with heavy ion collisions. Observations of neutrinos can probe nucleosyntheses in SN. Simulations of SN depend on the equation of state (EOS) of neutron-rich matter. We discuss a new EOS based on virial and relativistic mean field calculations. We believe that combing astronomical observations using photons, GW, and neutrinos, with laboratory experiments on nuclei, heavy ion collisions, and radioactive beams will fundamentally advance our knowledge of compact objects in the heavens, the dense phases of QCD, the origin of the elements, and of neutron-rich matter.
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Abdullah, S. Q., and A. N. Abdullah. "Study of the matter density distributions of halo nuclei 6He and 16C using the binary cluster model." Journal of Physics: Conference Series 2114, no. 1 (December 1, 2021): 012045. http://dx.doi.org/10.1088/1742-6596/2114/1/012045.

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Abstract The harmonic oscillator (HO) and Gaussian (GS) wave functions within the binary cluster model (BCM) have been employ to investigate the ground state neutron, proton and matter densities as well as the elastic form factors of two-neutron 6He and 16C halo nuclei. The long tail is a property that is clearly revealed in the density of the neutrons since it is found in halo orbits. The existence of a long tail in the neutron density distributions of 6He and 16C indicating that these nuclei have a neutron halo structure. Moreover, the matter rms radii and the reaction cross section (σr) of these nuclei have been calculated using the Glauber model.
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Tanaka, Hirohisa A. "Neutrino Oscillation Experiments." Journal of Physics: Conference Series 1468 (February 2020): 012206. http://dx.doi.org/10.1088/1742-6596/1468/1/012206.

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Sato, Katsuhiko, Keitaro Takahashi, and Shin'ichiro Ando. "Neutrino Burst from Supernovae and Neutrino Oscillation." Progress of Theoretical Physics Supplement 146 (2002): 212–26. http://dx.doi.org/10.1143/ptps.146.212.

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Zhang, Jinnan. "JUNO Oscillation Physics." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012110. http://dx.doi.org/10.1088/1742-6596/2156/1/012110.

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Abstract The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton multi-purpose liquid scintillator detector with an expected 3 % / E [ Mev ] energy resolution, under construction in a 700 m underground laboratory in the south of China (Jiangmen city, Guangdong province). The exceptional energy resolution and the massive fiducial volume of the JUNO detector offer great opportunities for addressing many essential topics in neutrino and astroparticle physics. JUNO’s primary goals are to determine the neutrino mass ordering and precisely measure the related neutrino oscillation parameters. With six years of data taking with reactor antineutrinos, JUNO can determine the mass ordering at a 3-4σ significance and the neutrino oscillation parameters sin2 θ 12, Δ m 21 2 , and | Δ m 31 2 | to a precision of better than 0.6%. In addition, the atmospheric neutrino and solar neutrino measurement at JUNO can also provide complementary and important information for neutrino oscillation physics. This work focuses on the oscillation physics of JUNO, which includes measurement and analysis of the reactor neutrinos, the atmospheric neutrinos, and the solar neutrinos. With the delicate energy response calibration and event reconstruction potential, JUNO will make a world-leading measurement on the neutrino oscillation parameters and neutrino mass ordering in the near future.
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Koranga, Bipin Singh, and Vivek Kumar Nautiyal. "Effective Neutrino Masses from Four Flavor Neutrino Mixing Matrix." International Journal of Theoretical Physics 60, no. 3 (March 2021): 781–92. http://dx.doi.org/10.1007/s10773-020-04683-y.

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AbstractWe consider the four neutrino oscillation that accommodate the all neutrino oscillation data. We consider the range of the corresponding mixing parameters by the result of neutrino oscillation experiments. Implicaion of the neutrino oscillation search for the neutrino mass square difference and mixing are discussed. We determine the possible values of the effective majorana neutrino mass $|<m>|=|{\sum }_{j}U_{ej}^{2}m_{j}|$ | < m > | = | ∑ j U e j 2 m j | in the four neutrino scenario. In the four-neutrino scheme there is an upper bound on | < m > | of the normal mass order is 2.0074eV for α = 0∘,β = 0∘andγ = 0∘. In the case of inverted mass order the upper bound on | < m > | is 2.0069eV for α = 0∘,β = 0∘andγ = 0∘.
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Goswami, Srubabati. "Solar neutrino oscillation phenomenology." Pramana 62, no. 2 (February 2004): 241–53. http://dx.doi.org/10.1007/bf02705086.

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YANG, SHIMIN, and BO-QIANG MA. "LORENTZ VIOLATION IN THREE-FAMILY NEUTRINO OSCILLATION." International Journal of Modern Physics A 24, no. 31 (December 20, 2009): 5861–76. http://dx.doi.org/10.1142/s0217751x09046382.

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We analyze the consequences of Lorentz violation (LV) to three-generation neutrino oscillation in the massless neutrino sector. We present a general formalism of three-family neutrino oscillation with neutrino flavor states being mixing states of energy eigenstates. It is also found that the mixing parts could strongly depend on neutrino energy by special choices of LV parameters. By confronting with the existing experimental data on neutrino oscillation, the upper bounds on LV parameters are derived. Because the oscillation amplitude could vary with the neutrino energy, neutrino experiments with energy dependence may test and constrain the LV scenario for neutrino oscillation.
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Majumdar, Debasish, and Amitava Raychaudhuri. "Solar neutrino oscillation diagnostics at SuperKamiokande and Sudbury Neutrino Observatory." Pramana 52, no. 5 (May 1999): L529—L536. http://dx.doi.org/10.1007/bf02830099.

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Dissertations / Theses on the topic "Radio Astronomy;neutrino;neutrino oscillation"

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Godley, Andrew. "A search for nu(mu) to nu(e) oscillations in the NOMAD experiment." University of Sydney. Physics, 2001. http://hdl.handle.net/2123/374.

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The NOMAD experiment is a neutrino oscillation experiment, capable of identifying \nm, \nmb, \nel, \neb\ and \nt\ for use in oscillation analyses. A search for \mutoe\ oscillations is conducted, emphasising the development of two separate beam simulators, to provide the background, (no oscillation), \nel\ signal. Both beam descriptions include fits to the results of the SPY experiment that measured hadron production from a 450~GeV proton beam on beryllium target. An independent analysis of the raw SPY data to produce the particle yield is reported. A series of criteria are described for the selection and classification of neutrino events. These produce the data samples necessary for both tuning the beam simulation and determining the oscillation signal. The development of a GEANT and FLUKA based Monte Carlo beam simulator is presented, providing good agreement to the measured neutrino beam. This simulation method has sizeable variations depending on the beamline geometry, which is not known precisely. This causes large systematic errors. An empirical parametrisation is proposed and used for the first time in a NOMAD oscillation search. It uses the measured neutrino spectra at NOMAD, except the \nel, to infer the meson production at the target, and then predict the \nel\ spectrum. This method has good agreement with the data and is also insensitive to alterations of the beamline geometry, resulting in much smaller systematic errors. The reduction of the systematic errors allows the \mutoe\ oscillations search to be performed with much greater precision. Comparisons of the \nel/\nm\ ratio between the empirical parametrisation and data yields no evidence for \mutoe\ oscillations, setting a limit on the mixing parameter, $sin^2(2 \theta) < 1.9 \times 10^{-3} \mbox{(90\% CL)}$ at high $\Delta m^2$. The present sensitivity of the analysis on the mixing parameter is 0.0017.
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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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Lasorak, Pierre. "A search for neutrino-induced single photons and measurement of oscillation analysis systematic errors with electron and anti-electron neutrino selections, using the off-axis near detector of the Tokai to Kamioka experiment." Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/39755.

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This thesis describes the search for neutrino-production of single photons using the off-axis near detector at 280 metres (ND280) of the T2K experiment. A photon selection is used to perform the searches using the first Fine Grained Detector (FGD1) of the ND280. The thesis also highlights the importance of systematic uncertainties in the analysis, since the selection is background dominated. After careful characterisation of the systematic uncertainties and estimation of the efficiency, it is concluded that, with the selected 39 data events and the expected background of 45 events, the limit for neutrino-induced single photons, at T2K energies, is 0:0903 x 10-38cm2/nucleon. This result can be compared with the expected limit of 0:1068 x 10-38cm2/nucleon. Using ND280's neutrino energy distribution (peaked at 600 MeV), NEUT predicts a flux-averaged cross section of 0:000239 x 10-38cm2/nucleon. A fit to the muon and electron (anti-) neutrinos selections in the ND280 was performed. The aim of this analysis is to use a data-driven method to constrain the electron (anti-) neutrinos background events at SK, the far detector and electron neutrino cross section parameters for oscillation analyses. These are fundamental inputs in the context of the searches for Charge-Parity (CP) violation in the neutrino sector. After a fit to the nominal Monte Carlo was realised, the electron neutrino and anti-neutrino cross section normalisation uncertainties are found to be 7.6% and 19.3%, repectively. Although these numbers are much higher than the assumed 3% uncertainty of all the CP violation searches performed at T2K up to now, the difference in the δCP log-likelihood is found to be acceptable as the one sigma contours are not very different and the exclusion of the δCP = 0 is roughly the same.
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Beise, Jakob. "In-situ calibration device of firn properties for Askaryan neutrino detectors." Thesis, Uppsala universitet, Högenergifysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452702.

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Simulations have demonstrated that high-energy neutrinos (E > 1017 eV) are detected cost-efficiently via the Askaryan effect in ice, where a particle cascade induced by the neutrino interaction produces coherent radio emission that can be picked up by antennas installed below the surface. A good knowledge of the near surface ice (aka firn) properties is required to reconstruct the neutrino properties. In particular, a continuous monitoring of the snow accumulation (which changes the depth of the antennas) and the index-of-refraction profile are crucial for an accurate determination of the neutrino's direction and energy. 14 months of data of the ARIANNA detector on the Ross Ice Shelf, Antarctica, are presented where a prototype calibration system was successfully used to monitor the snow accumulation with unprecedented precision of 1 mm. Several algorithms to extract the time differences of direct and reflected (off the surface) signals (D'n'R time difference) from noisy data (including deep learning) are explored. This constitutes an in-situ test of the neutrino vertex distance reconstruction using the D'n'R technique which is needed to determine the neutrino energy. Additionally, an in-situ calibration system is proposed that extends the radio detector station with a radio emitter to continuously monitor the firn properties by measuring D'n'R time difference. In a simulation study the station layout is optimized and the achievable precision is quantified.
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Beise, Jakob. "Measurement of the snow accumulation in Antarctica with a neutrino radio detector and extension to the measurement of the index-of-refraction profile." Thesis, Uppsala universitet, Högenergifysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-437647.

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High-energy neutrino physics offers a unique way to investigate the most violent phenomena in our universe. The detection of energies above E > 1017 eV is most efficient using the Askaryan effect, where a neutrino-induced particle shower produces coherent radio emission that is detectable with radio antennas. By using radio techniques large volumes can be covered with few stations at moderate cost exploiting the large attenuation length of radio in cold ice. Key to the reconstruction of the neutrino properties visa precise and continuous monitoring of the firn properties. In particular the snow accumulation (changing the absolute depth of the antennas thus the propagation path of the signal) and the index-of-refraction profile are crucial for the neutrino energy and direction reconstruction. This work presents an in-situ calibration design that acts as an detector extension by adding additional emitter antennas to the station design to continuously monitor the firn properties by measuring the direct and reflected signals (D’n’R). In a simulation study the optimal station layout is determined and the achievable precision is quantified. Furthermore 14 months of data from an ARIANNA station at the Ross Ice Shelf, Antarctica, are presented where a prototype of this calibration system has been successfully installed to monitor the snow accumulation with unprecedented precision of 1 mm. Several algorithms, including deep learning algorithms, to compute the D’n’R time difference from radio traces are considered.
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Books on the topic "Radio Astronomy;neutrino;neutrino oscillation"

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1933-, Cline D., ed. Observational neutrino astronomy: Proceedings of the Workshop on Extra Solar Neutrino Astronomy : University of California, Los Angeles 30 Sept. - 2 Oct. 1987. Singapore: World Scientific, 1988.

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Book chapters on the topic "Radio Astronomy;neutrino;neutrino oscillation"

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Michael, D. "Neutrino Oscillation Results from Superkamiokande and Soudan 2." In Cosmic Radiations: From Astronomy to Particle Physics, 131–34. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0634-7_11.

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Peck, C. W. "Some Neutrino Oscillation Experiments in the United States." In Cosmic Radiations: From Astronomy to Particle Physics, 149–56. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0634-7_14.

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Connolly, Amy, and Abigail G. Vieregg. "Radio Detection of High Energy Neutrinos." In Neutrino Astronomy, 217–40. WORLD SCIENTIFIC, 2017. http://dx.doi.org/10.1142/9789814759410_0015.

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Conference papers on the topic "Radio Astronomy;neutrino;neutrino oscillation"

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Sako, Takashi. "TIBET ASgamma: Dawn of sub-PeV gamma-ray astronomy." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.421.0049.

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Grasso, Dario, Daniele Gaggero, Antonio Marinelli, Alfredo Urbano, Marco Taoso, and Mauro Valli. "Evidences of unconventional cosmic ray propagation in gamma-ray and neutrino astronomy." In Neutrino Oscillation Workshop. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0055.

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Plavin, Alexander. "Radio astronomy locates the neutrino origin in bright blazars." In 37th International Cosmic Ray Conference. Trieste, Italy: Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.395.0967.

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Chassande-Mottin, Éric, LIGO Scientific Collaboration, and Virgo Collaboration. "Data analysis challenges in transient gravitational-wave astronomy." In 5TH INTERNATIONAL WORKSHOP ON ACOUSTIC AND RADIO EEV NEUTRINO DETECTION ACTIVITIES: ARENA 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4807558.

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Rodriguez-Ramirez, Juan Carlos, Elisabete Maria de Gouveia Dal Pino, and Rafael Alves Batista. "Numerical models of neutrino and gamma-ray emission from magnetic reconnection in the core of radio-galaxies." In International Conference on Black Holes as Cosmic Batteries: UHECRs and Multimessenger Astronomy. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.329.0014.

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Wen, De-Hua, Bao-An Li, Hou-Yuan Chen, and Nai-Bo Zhang. "Relations among the characteristics of f-mode oscillations, tidal deformability and radii of canonical neutron stars." In XIAMEN-CUSTIPEN WORKSHOP ON THE EQUATION OF STATE OF DENSE NEUTRON-RICH MATTER IN THE ERA OF GRAVITATIONAL WAVE ASTRONOMY. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5117824.

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