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Title: Very low-energy neutrino interactions

Abstract

Neutrino-nucleus reaction cross sections are now evaluated rather accurately by shell-model (SM) or SM+RPA calculations based on recent advances in nuclear structure studies. Due to these achievements, reliable constraints on super-nova neutrino temperatures as well as neutrino oscillation parameters become possible. Supernova neutrino tempeatures are constrained from abundances of elements obtained by using new ν-nucleus reaction cross sections. A possibility of constructing supernova neutrino spectrum from beta-beam measurements is pointed out. Neutrino mass hierarchy and mixing angle θ{sub 13} can be determined from abundance ratio of {sup 7}Li/{sup 11}B, which is sensitive to the MSW matter oscillation effects in supernova explosions. Inverted mass hierarchy is shown to be statistically more favored based on a recent analysis of presolar grains. Effects of neutrino-neutrino interactions are also shown to play important roles in r-process nucleosynthesis. Importance and possibilities of direct measurements of ν-induced cross sections on {sup 40}Ar and {sup 208}Pb are discussed for future supernova neutrino detections. Recent calculations of the cross sections for ν-{sup 40}Ar are presented. The need for new theoretical evaluations of the cross sections for ν-{sup 208}Pb is pointed out. Challenges to experiments on coherent elastic scattering are presented.

Authors:
 [1];  [2]
  1. Department of Physics and Graduate School of Integrated Basic Sciences, College of Humanities and Sciences, Nihon University, Sakurajosui 3-25-40, Setagaya-ku, Tokyo 156-8550 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22391825
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1663; Journal Issue: 1; Conference: NuINT12: 8. International Workshop on Neutrino-Nucleus Internactions in the Few-GeV Region, Rio de Janeiro (Brazil), 22-27 Oct 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ARGON 40; ARGON 40 TARGET; BORON 11; CROSS SECTIONS; ELASTIC SCATTERING; ELEMENT ABUNDANCE; LEAD 208; LEAD 208 TARGET; LIMITING VALUES; LITHIUM 7; NEUTRINO OSCILLATION; NEUTRINO REACTIONS; NEUTRINO-NEUTRINO INTERACTIONS; NEUTRINO-NUCLEON INTERACTIONS; NEUTRINOS; NUCLEAR STRUCTURE; NUCLEOSYNTHESIS; R PROCESS; SHELL MODELS; WEINBERG ANGLE

Citation Formats

Suzuki, Toshio, and Department of Physics and Graduate School of Integrated Basic Sciences, College of Humanities and Sciences, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588. Very low-energy neutrino interactions. United States: N. p., 2015. Web. doi:10.1063/1.4919503.
Suzuki, Toshio, & Department of Physics and Graduate School of Integrated Basic Sciences, College of Humanities and Sciences, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588. Very low-energy neutrino interactions. United States. doi:10.1063/1.4919503.
Suzuki, Toshio, and Department of Physics and Graduate School of Integrated Basic Sciences, College of Humanities and Sciences, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588. Fri . "Very low-energy neutrino interactions". United States. doi:10.1063/1.4919503.
@article{osti_22391825,
title = {Very low-energy neutrino interactions},
author = {Suzuki, Toshio and Department of Physics and Graduate School of Integrated Basic Sciences, College of Humanities and Sciences, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588},
abstractNote = {Neutrino-nucleus reaction cross sections are now evaluated rather accurately by shell-model (SM) or SM+RPA calculations based on recent advances in nuclear structure studies. Due to these achievements, reliable constraints on super-nova neutrino temperatures as well as neutrino oscillation parameters become possible. Supernova neutrino tempeatures are constrained from abundances of elements obtained by using new ν-nucleus reaction cross sections. A possibility of constructing supernova neutrino spectrum from beta-beam measurements is pointed out. Neutrino mass hierarchy and mixing angle θ{sub 13} can be determined from abundance ratio of {sup 7}Li/{sup 11}B, which is sensitive to the MSW matter oscillation effects in supernova explosions. Inverted mass hierarchy is shown to be statistically more favored based on a recent analysis of presolar grains. Effects of neutrino-neutrino interactions are also shown to play important roles in r-process nucleosynthesis. Importance and possibilities of direct measurements of ν-induced cross sections on {sup 40}Ar and {sup 208}Pb are discussed for future supernova neutrino detections. Recent calculations of the cross sections for ν-{sup 40}Ar are presented. The need for new theoretical evaluations of the cross sections for ν-{sup 208}Pb is pointed out. Challenges to experiments on coherent elastic scattering are presented.},
doi = {10.1063/1.4919503},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1663,
place = {United States},
year = {2015},
month = {5}
}