Model-independent approach to the reconstruction of multiflavor supernova neutrino energy spectra

Li, Huiling; Huang, X. T.; Li, Yufeng; Wen, L.; Zhou, Shun

doi:10.1103/physrevd.99.123009

Cited by 29 publications

(32 citation statements)

References 83 publications

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“…Some recent studies have shown that it is possible to achieve m ν < 0.8 eV at the 95% confidence level for the Super-Kamiokande water Cherenkov detector [363] and for the JUNO liquid scintillator detector [314,364]. Several methods for properly timing the neutrino and (or) antineutrino signals coming from a galactic supernova have recently been explored via the Monte Carlo simulations for the next-generation neutrino and (or) antineutrino detectors, including JUNO [365,366], Hyper-Kamiokande [321] and IceCube Gen2 [367,368,369].…”

Section: The Absolute Neutrino Mass Scalementioning

confidence: 99%

Flavor structures of charged fermions and massive neutrinos

Xing

2019

Preprint

116

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Most of the free parameters in the Standard Model (SM) -a quantum field theory which has successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all the known fundamental particles, come from the lepton and quark flavors. The discovery of neutrino oscillations has proved that the SM is incomplete, at least in its lepton sector; and thus the door of opportunity is opened to exploring new physics beyond the SM and solving a number of flavor puzzles. In this review article we give an overview of important progress made in understanding the mass spectra, flavor mixing patterns, CP-violating effects and underlying flavor structures of charged leptons, neutrinos and quarks in the past twenty years. After introducing the standard pictures of fermion mass generation, flavor mixing and CP violation in the SM extended with the presence of massive Dirac or Majorana neutrinos, we briefly summarize current experimental knowledge about the flavor parameters of quarks and leptons. Various ways of describing flavor mixing and CP violation are discussed, the renormalization-group evolution of flavor parameters is illuminated, and the matter effects on neutrino oscillations are interpreted. Taking account of possible extra neutrino species, we propose a standard parametrization of the 6 × 6 flavor mixing matrix and comment on the phenomenological aspects of heavy, keV-scale and light sterile neutrinos. We pay particular attention to those novel and essentially model-independent ideas or approaches regarding how to determine the Yukawa textures of Dirac fermions and the effective mass matrix of Majorana neutrinos, including simple discrete and continuous flavor symmetries. An outlook to the future development in unravelling the mysteries of flavor structures is also given.

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Section: The Absolute Neutrino Mass Scalementioning

confidence: 99%

Flavor structures of charged fermions and massive neutrinos

Xing

2019

Preprint

116

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“…[42]. An unfolding based approach, including the detector systematics, may be useful [68][69][70][71].…”

Section: Discussionmentioning

confidence: 99%

A deuterated liquid scintillator for supernova neutrino detection

Chauhan,

Dasgupta,

Datar

2021

Preprint

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For the next galactic supernova, operational neutrino telescopes will measure the neutrino flux several hours before their optical counterparts. Existing detectors, relying mostly on charged current interactions, are mostly sensitive to νe and to a lesser extent to ν e . In order to measure the flux of other flavors (ν µ , νµ , ν τ , and ντ ), we need to observe their neutral current interactions with the detector. Such a measurement is not only crucial for overall normalization of the supernova neutrino flux but also for understanding the intricate neutrino oscillation physics. A deuterium based detector will be sensitive to all neutrino flavors. In this paper, we propose a 1 kton deuterated liquid scintillator (DLS) based detector that will see about 435 neutral current events and 170 (108) charged current ν e (ν e ) events from a fiducial supernova at a distance of 10 kpc from Earth. We explore the possibility of extracting spectral information from the neutral current channel (−) ν d → (−) ν np by measuring the quenched kinetic energy of the proton in the final state, where the neutron in the final state is tagged and used to reduce backgrounds.

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“…By collaborating with the MPIE group, astronomers also explore the γ -rays from radioactive isotopes in the Milky Way to probe the supernova progenitors and later evolution of massive stars. A 20kt neutrino observatory (JUNO) will be ready in 2020 to detect all six flavors of neutrinos and anti-neutrinos emitted from the supernova core [91][92][93][94][95].…”

Section: Mainland Of Chinamentioning

confidence: 99%

Progress in nuclear astrophysics of east and southeast Asia

Aziz

Ahmad²,

Ahn³

et al. 2021

AAPPS Bull.

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Nuclear astrophysics is an interdisciplinary research field of nuclear physics and astrophysics, seeking for the answer to a question, how to understand the evolution of the universe with the nuclear processes which we learn. We review the research activities of nuclear astrophysics in east and southeast Asia which includes astronomy, experimental and theoretical nuclear physics, and astrophysics. Several hot topics such as the Li problems, critical nuclear reactions and properties in stars, properties of dense matter, r-process nucleosynthesis, and ν-process nucleosynthesis are chosen and discussed in further details. Some future Asian facilities, together with physics perspectives, are introduced.

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Model-independent approach to the reconstruction of multiflavor supernova neutrino energy spectra

Cited by 29 publications

References 83 publications

Flavor structures of charged fermions and massive neutrinos

Flavor structures of charged fermions and massive neutrinos

A deuterated liquid scintillator for supernova neutrino detection

Progress in nuclear astrophysics of east and southeast Asia

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