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

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Published: 4 June 2021
Last updated: 20 February 2023

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Takahashi, K., and K. Sato. "Effects of Neutrino Oscillation on Supernova Neutrino: Inverted Mass Hierarchy." Progress of Theoretical Physics 109, no. 6 (June 1, 2003): 919–31. http://dx.doi.org/10.1143/ptp.109.919.

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12

Wachala, T. "T2K Experiment Neutrino Oscillation Results." Acta Physica Polonica B 50, no. 11 (2019): 1757. http://dx.doi.org/10.5506/aphyspolb.50.1757.

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13

Luo, Shu. "Neutrino Oscillation in Dense Matter." Moscow University Physics Bulletin 77, no. 2 (April 2022): 462–63. http://dx.doi.org/10.3103/s002713492202062x.

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14

Xin-Lian, Luo, Bai Hua, and Li Sheng-Peng. "Cosmic Neutrino Oscillation or Separation." Chinese Physics Letters 23, no. 10 (September 27, 2006): 2691–94. http://dx.doi.org/10.1088/0256-307x/23/10/019.

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15

Benka, Stephen G. "Tantalizing and rare neutrino oscillation." Physics Today 64, no. 8 (August 2011): 18. http://dx.doi.org/10.1063/pt.3.1207.

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16

Sztuc, Artur. "Recent T2K Neutrino Oscillation Results." Journal of Physics: Conference Series 1468 (February 2020): 012133. http://dx.doi.org/10.1088/1742-6596/1468/1/012133.

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17

Yamaguchi, Y. "A Note on Neutrino Oscillation." Progress of Theoretical Physics 102, no. 2 (August 1, 1999): 467–70. http://dx.doi.org/10.1143/ptp.102.467.

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18

Schwetz, Thomas, Mariam Tórtola, and José W. F. Valle. "Three-flavour neutrino oscillation update." New Journal of Physics 10, no. 11 (November 10, 2008): 113011. http://dx.doi.org/10.1088/1367-2630/10/11/113011.

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19

TOTANI, TOMONORI, and KATSUHIKO SATO. "EFFECTS OF NEUTRINO OSCILLATION ON THE SUPERNOVA RELIC NEUTRINO BACKGROUND." International Journal of Modern Physics D 05, no. 05 (October 1996): 519–27. http://dx.doi.org/10.1142/s0218271896000321.

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We investigate to what extent the oscillation or conversion of neutrinos enhances the expected event rate of the supernova relic neutrino background (SRN) at the SuperKamiokande detector (SK). The SRN [Formula: see text] can be almost completely exchanged with vμ-like neutrinos by the MSW oscillation under the inverse mass hierarchy with Δm2~ 10−8–105[eV2], or by the magnetic moment of Majorana neutrinos with μv≳10−12μB and Δm2~10−4–10° [eV2]. In the standard calculation of the SRN flux, the event rate of the SRN [Formula: see text] at the SK in the observable energy range of 15–40 MeV can be enhanced from 1.2 yr−1 to 2.4 yr−1 if all [Formula: see text] are exchanged with vμ-like neutrinos. The enhancement is prominent especially in the high energy range (≳ 25 MeV). In the astrophysically optimistic calculation, the event rate becomes as high as 9.4 yr−1. Because the theoretical upper bound of the SRN events without oscillation is about 5 yr−1 taking into account the various astrophysical uncertainties, we might have to resort to the neutrino oscillation if more than 5 events in a year, as well as a significantly harder spectrum, were observed in the SK.
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20

Bilenky, S. M., C. Giunti, and W. Grimus. "Neutrino mass spectrum from the results of neutrino oscillation experiments." European Physical Journal C 1, no. 1-2 (March 1998): 247–53. http://dx.doi.org/10.1007/bf01245814.

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21

Bilenky, S. M., C. Giunti, and W. Grimus. "Neutrino mass spectrum from the results of neutrino oscillation experiments." European Physical Journal C 1, no. 1 (1998): 247. http://dx.doi.org/10.1007/s100520050078.

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22

Huber, Patrick. "Oscillation physics at neutrino factories." European Physical Journal C 33, S1 (January 8, 2004): s849—s851. http://dx.doi.org/10.1140/epjcd/s2004-03-1586-y.

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23

Gil-Botella, Inés, and Carmen Palomares. "Revealing Neutrino Oscillations Unknowns with Reactor and Long-Baseline Accelerator Experiments." Universe 8, no. 2 (January 27, 2022): 81. http://dx.doi.org/10.3390/universe8020081.

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Reactor and accelerator-based neutrino experiments have played a critical role in the understanding of neutrino oscillations and are currently dominating the high-precision measurements of neutrino oscillation parameters. The discovery of a non-zero θ13 by the reactor experiments has opened the possibility of observing CP violation in the lepton sector by long-baseline accelerator experiments. The current knowledge of the neutrino oscillation parameters will be expanded upon in the near future through more precise measurements, including the discovery of the neutrino mass ordering and the CP-violating phase. This review summarizes the distinct and complementary approach of reactor and accelerator-based neutrino experiments to measure neutrino oscillations. The main scientific achievements of the Double Chooz reactor neutrino experiment and the science program to be developed by the DUNE long-baseline neutrino experiment with the world’s most intense neutrino beam are presented in this article. Spain has strongly contributed to these results and will continue to play a prominent role in the neutrino oscillation program in the coming years.
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24

Midorikawa, S., H. Terazawa, and K. Akama. "ALTERNATIVELY POSSIBLE NEUTRINO OSCILLATION IN THE NEUTRINO BURST FROM SN1987A." Modern Physics Letters A 03, no. 02 (January 1988): 215–22. http://dx.doi.org/10.1142/s0217732388000258.

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The periodic structure found in the observed spectrum of inverse electron neutrino energies of the KAMIOKANDE-II and IMB data on the neutrino burst from the supernova SN1987A, which can be most simply explained by possible neutrino oscillation in vacuum with the extremely small mass-squared difference of Δm2=(7.2±0.4)×10−20eV2, can also be explained by neutrino oscillation in the supernova or in the earth. By comparing the data with our model calculations including the Mikheyev-Smirnov-Wolfenstein effect, the mass-squared difference of neutrinos is estimated to be Δm2=(2.0 ± 0.5)×10−7 (R⊙/Rs)eV2 or (2.5±0.9)×10−5eV2.
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25

ZIINO, G. "ELECTROWEAK THEORY AND THE NEUTRINO-MASS AND NEUTRINO-OSCILLATION QUESTIONS." Modern Physics Letters A 22, no. 12 (April 20, 2007): 853–65. http://dx.doi.org/10.1142/s0217732307022852.

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It is shown that both conjectures of neutrino mass and neutrino oscillation can be made really well-grounded within the Standard Model provided that one adopts a recent new version of the electroweak scheme spontaneously giving also a fundamental explanation for the so-called "maximal parity-violation" effect. A crucial role is played by the prediction of two distinct, scalar and pseudoscalar, replicas of (electron, muon, and tau) lepton numbers that could fully account for an actual non-coincidence between neutrino mass-eigenstates and gauge-eigenstates.
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26

MIDORIKAWA, S., H. TERAZAWA, and K. AKAMA. "POSSIBLE NEUTRINO OSCILLATION IN THE OBSERVED NEUTRINO BURST FROM SN1987a." Modern Physics Letters A 02, no. 08 (August 1987): 561–64. http://dx.doi.org/10.1142/s0217732387000690.

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The KAMIOKANDE-II and IMB data on the neutrino burst from the supernova SN1987a is analyzed for possible neutrino oscillation. Highlighted is the possibility that a periodic structure in the observed spectrum of inverse electron neutrino energies can be explained by the extremely small mass-squared difference of ∆m2 = (7.2 ± 0.4) × 10−20 eV 2.
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27

Gariazzo, Stefano. "Light Sterile Neutrinos." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012003. http://dx.doi.org/10.1088/1742-6596/2156/1/012003.

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Abstract We review the status of light sterile neutrino searches, motivated by the original Short BaseLine (SBL) anomalies. Here, we discuss how sterile neutrino properties can be constrained by different types of neutrino oscillation experiments (considering appearance or disappearance probes in different oscillation channels) and non-oscillation measurements. These latter include experiments aiming at obtaining a value for the absolute scale of neutrino masses (β decay probes) and the indirect constraints that we could obtain from cosmological observations.
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28

Sato, Katsuhiko, Keitaro Takahashi, and Shin'ichiro Ando. "Neutrino Burst from Supernovae and the Implications for Neutrino Oscillation Parameters." Progress of Theoretical Physics Supplement 151 (2003): 32–43. http://dx.doi.org/10.1143/ptps.151.32.

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29

LIU, JIANG. "A THEORETICAL PATTERN FOR NEUTRINO AND STERILE-NEUTRINO OSCILLATIONS." Modern Physics Letters A 04, no. 06 (March 20, 1989): 535–41. http://dx.doi.org/10.1142/s0217732389000666.

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A theoretical pattern for the MSW oscillation that takes νeL into a sterile particle is discussed. The required small neutrino mass is induced by a seesaw formula, in which the heavy neutrino mass term is of the order of the grand unification scale. Realizations of our scheme are illustrated by a simple SU (2)L × U (1)Y model.
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30

DE GOUVÊA, ANDRÉ. "NEUTRINO PHYSICS – THEORY." International Journal of Modern Physics A 20, no. 14 (June 10, 2005): 2907–18. http://dx.doi.org/10.1142/s0217751x05025619.

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I discuss the new physics unveiled by neutrino oscillation experiments. It is fair to say that, while significant theoretical progress has been made, we are yet to construct a unique coherent picture that naturally explains non-zero, yet tiny, neutrino masses and the newly revealed pattern of lepton mixing. I discuss what the challenges are, and point to the fact that more experimental input is required. Finally, I draw attention to the fact that neutrinos may have only just begun to reshape fundamental physics, given the fact that we are still to explain the LSND anomaly and because the neutrino oscillation phenomenon is ultimately sensitive to very small new-physics effects.
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31

Settanta, Giulio. "JUNO Non-oscillation Physics." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012109. http://dx.doi.org/10.1088/1742-6596/2156/1/012109.

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Abstract The JUNO observatory, a 20 kt liquid scintillator detector to be completed in 2021 in China, belongs to the next-generation of neutrino detectors, which share the common features of having a multi-ton scale and an energy resolution at unprecedented levels. Beside the ambitious goal of neutrino mass ordering determination, the JUNO Collaboration plans also to perform a wide series of other measurements in the neutrino and astroparticle fields, rare processes and searches for new physics. The detector characteristics will allow the detection of neutrinos from many sources, like supernovae, the Sun, atmospheric and geoneutrinos. Other potential studies accessible to JUNO include the search for exotic processes, such as nucleon decays, Dark Matter and magnetic monopoles interactions, light sterile neutrinos production. This work reviews the physics potential of JUNO about non-reactor neutrino sources, highlighting the unique contributions that the experiment will give to the various fields in the forthcoming years.
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32

CUESTA, HERMAN J. MOSQUERA, and GAETANO LAMBIASE. "NEUTRINO MASS SPECTRUM FROM NEUTRINO SPIN-FLIP-DRIVEN GRAVITATIONAL WAVES." International Journal of Modern Physics D 18, no. 03 (March 2009): 435–43. http://dx.doi.org/10.1142/s0218271809014571.

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Neutrino (ν) oscillations during the core collapse and bounce of a supernova (SN) are shown to generate the most powerful detectable gravitational wave (GW) bursts. The SN neutronization phase produces mainly electron (νe) neutrinos, the oscillations of which must take place within a few mean-free paths of their resonance surface located near their neutrinosphere. Here we characterize the GW signals produced by spin-flip oscillations inside the fast-rotating protoneutron star in the SN core. In this novel mechanism, the release of both the oscillation-produced νμ's, ντ's and the spin-flip-driven GW pulse provides a unique emission offset [Formula: see text] for measuring the ν travel time to Earth. As massive ν's get noticeably delayed on its journey to Earth with respect to the GW, they generate over the oscillation transient, the accurate measurement of this time-of-flight delay by SNEWS + LIGO, VIRGO, BBO, DECIGO, etc. can assess the absolute ν mass spectrum straightforwardly.
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33

LAW, Z. Y., A. H. CHAN, and C. H. OH. "NEUTRINO OSCILLATION IN DENSE MEDIUMS." International Journal of Modern Physics A 24, no. 18n19 (July 30, 2009): 3483–92. http://dx.doi.org/10.1142/s0217751x09047090.

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It is found that a term normally discarded in the standard treatment of the MSW effect might be relevant in the case of non-adiabatic varying matter density, leading to a second order field equation, instead of the usual first order "Schrodinger equation". This leads to dispersion relation that gives rise to the possibility of neutrino trapping in a dense medium as well as the coupling of neutrino oscillation to neutral current interaction. This is found to be in agreement with previous results1. The corresponding conserved probability current is derived for this second order equation, and applied to the case of 2-flavor neutrino oscillation in a dense medium. The results in this work might be applicable to the oscillation of neutrinos in dense astrophysical medium.
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34

Maricic, Jelena, and John Learned. "The KamLAND anti-neutrino oscillation experiment." Contemporary Physics 46, no. 1 (January 2005): 1–14. http://dx.doi.org/10.1080/0010751052000297317.

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35

Inoue, K. "Reactor neutrino oscillation studies with KamLAND." New Journal of Physics 6 (October 29, 2004): 147. http://dx.doi.org/10.1088/1367-2630/6/1/147.

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36

Bernstein, Robert H., and Stephen J. Parke. "Terrestrial long-baseline neutrino-oscillation experiments." Physical Review D 44, no. 7 (October 1, 1991): 2069–78. http://dx.doi.org/10.1103/physrevd.44.2069.

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37

MIDORIKAWA, S., H. TERAZAWA, and K. AKAMA. "ERRATA: "ALTERNATIVELY POSSIBLE NEUTRINO OSCILLATION IN THE NEUTRINO BURST FROM SN1987A"." Modern Physics Letters A 03, no. 05 (April 1988): 547. http://dx.doi.org/10.1142/s0217732388002221.

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38

Nakamura, S. X., H. Kamano, Y. Hayato, M. Hirai, W. Horiuchi, S. Kumano, T. Murata, et al. "Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments." Reports on Progress in Physics 80, no. 5 (April 10, 2017): 056301. http://dx.doi.org/10.1088/1361-6633/aa5e6c.

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39

Ternes, Christoph Andreas. "CPT violation in neutrino oscillations." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012108. http://dx.doi.org/10.1088/1742-6596/2156/1/012108.

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Abstract In this talk I consider CPT violating neutrino oscillations in its most general form, i.e. assuming different oscillation parameters for neutrinos and antineutrinos. In this scenario the measurement of oscillation parameters is much more difficult than in the standard case. I will discuss the implication on the recent CP measurements in T2K and NOυA, and also discuss how well current experiments can bound different neutrino and antineutrino parameters. Finally, I will discuss how well the upcoming DUNE experiment might improve the current bounds.
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40

Decowski, Michal Patrick. "MEASUREMENT OF ANTI-NEUTRINO SPECTRAL DISTORTION BY KAMLAND." International Journal of Modern Physics A 20, no. 14 (June 10, 2005): 3051–54. http://dx.doi.org/10.1142/s0217751x05025723.

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The KamLAND experiment uses reactor anti-neutrinos to study the solar neutrino oscillation parameters. KamLAND recently updated the reactor neutrino measurement, with almost a factor 5 more statistics than previously reported. The measured spectral distortion in the anti-neutrino spectrum favors neutrino oscillation as the explanation for neutrino disappearance and gives the best value of [Formula: see text] to date.
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41

Farnese, Christian. "Short-Baseline neutrino oscillation searches with the ICARUS detector." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012141. http://dx.doi.org/10.1088/1742-6596/2156/1/012141.

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Abstract The ICARUS collaboration employed the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratories studying neutrino oscillations with the CNGS neutrino beam from CERN, and searching for atmospheric neutrino interactions. ICARUS initially performed a sensitive search for LSND-like anomalous υ e appearance in the CNGS beam constraining the allowed parameters to a narrow region around 1eV 2. After a significant overhauling phase at CERN, the T600 detector was installed at Fermilab and activated in 2020 in view of the forthcoming sensitive search for sterile neutrinos using the Booster beam within the Short Baseline Neutrino (SBN) program. During the initial commissioning phase ICARUS already collected the first neutrino events from the Booster Neutrino Beam and the NuMI off-axis. The proposed contribution will address ICARUS achievements, its status and plans for the new run at Fermilab.
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42

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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43

Oliveira, R. L. N., and M. M. Guzzo. "Quantum dissipation in vacuum neutrino oscillation." European Physical Journal C 69, no. 3-4 (September 2, 2010): 493–502. http://dx.doi.org/10.1140/epjc/s10052-010-1388-1.

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44

Segura, J. "Neutrino oscillation and magnetic moment from." European Physical Journal C 5, no. 2 (1998): 269. http://dx.doi.org/10.1007/s100520050268.

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45

Dolgov, A. D., O. V. Lychkovskiy, A. A. Mamonov, L. B. Okun, and M. G. Schepkin. "Neutrino wave function and oscillation suppression." European Physical Journal C 44, no. 3 (November 2005): 431–34. http://dx.doi.org/10.1140/epjc/s2005-02369-7.

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46

Masud, Mehedi, Poonam Mehta, Christoph A. Ternes, and Mariam Tórtola. "A geometrical look at neutrino oscillation probabilities with non-standard interactions." Journal of Physics: Conference Series 2156, no. 1 (December 1, 2021): 012102. http://dx.doi.org/10.1088/1742-6596/2156/1/012102.

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Abstract In this talk, we discuss an alternative description of neutrino flavor oscillations using leptonic unitarity triangles (LUT) which allows for geometric visualization of neutrino oscillations. After a brief review of the LUT description of neutrino oscillations for propagation in vacuum and in matter with standard interactions, we discuss how we can extend this approach to describe neutrino oscillations in presence of new physics. We consider non-standard neutrino interactions (NSI) as the toy model of new physics. The content presented in this talk is based on Ref. [1].
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47

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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48

Moura, Celio A., and Fernando Rossi-Torres. "Searches for Violation of CPT Symmetry and Lorentz Invariance with Astrophysical Neutrinos." Universe 8, no. 1 (January 11, 2022): 42. http://dx.doi.org/10.3390/universe8010042.

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Neutrinos are a powerful tool for searching physics beyond the standard model of elementary particles. In this review, we present the status of the research on charge-parity-time (CPT) symmetry and Lorentz invariance violations using neutrinos emitted from the collapse of stars such as supernovae and other astrophysical environments, such as gamma-ray bursts. Particularly, supernova neutrino fluxes may provide precious information because all neutrino and antineutrino flavors are emitted during a burst of tens of seconds. Models of quantum gravity may allow the violation of Lorentz invariance and possibly of CPT symmetry. Violation of Lorentz invariance may cause a modification of the dispersion relation and, therefore, in the neutrino group velocity as well in the neutrino wave packet. These changes can affect the arrival time signal registered in astrophysical neutrino detectors. Direction or time-dependent oscillation probabilities and anisotropy of the neutrino velocity are manifestations of the same kind of new physics. CPT violation, on the other hand, may be responsible for different oscillation patterns for neutrino and antineutrino and unconventional energy dependency of the oscillation phase or of the mixing angles. Future perspectives for possible CPT and Lorentz violating systems are also presented.
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Blennow, Mattias, and Enrique Fernandez-Martinez. "Neutrino oscillation parameter sampling with MonteCUBES." Computer Physics Communications 181, no. 1 (January 2010): 227–31. http://dx.doi.org/10.1016/j.cpc.2009.09.014.

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50

Gonzalez-Garcia, M. C. "Global analyses of oscillation neutrino experiments." Physics of the Dark Universe 4 (September 2014): 1–5. http://dx.doi.org/10.1016/j.dark.2014.04.002.

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