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Title: Supernovae and neutrinos

Abstract

A long-standing problem in supernova physics is how to measure the total energy and temperature of {nu}{sub {mu}}, {nu}{sub {tau}}, {bar {nu}}{sub {mu}}, and {bar {nu}}{sub {tau}}. While of the highest importance, this is very difficult because these flavors only have neutral-current detector interactions. We propose that neutrino-proton elastic scattering, {nu} + p {yields} {nu} + p, can be used for the detection of supernova neutrinos in scintillator detectors. It should be emphasized immediately that the dominant signal is on free protons. Though the proton recoil kinetic energy spectrum is soft, with T{sub p} {approx_equal} 2E{sub {nu}}{sup 2}/M{sub p}, and the scintillation light output from slow, heavily ionizing protons is quenched, the yield above a realistic threshold is nearly as large as that from {bar {nu}}{sub e} + p {yields} e{sup +} + n. In addition, the measured proton spectrum is related to the incident neutrino spectrum. The ability to detect this signal would give detectors like KamLAND and Borexino a crucial and unique role in the quest to detect supernova neutrinos.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab., Batavia, IL (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
801266
Report Number(s):
FERMILAB-Conf-02/218-A
TRN: US0205323
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: Neutrino 2002, Munich (DE), 05/25/2002--05/30/2002; Other Information: PBD: 19 Sep 2002
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DETECTION; ELASTIC SCATTERING; KINETIC ENERGY; NEUTRINOS; PHYSICS; PROTONS; SCINTILLATIONS; SUPERNOVAE

Citation Formats

John F. Beacom. Supernovae and neutrinos. United States: N. p., 2002. Web.
John F. Beacom. Supernovae and neutrinos. United States.
John F. Beacom. Thu . "Supernovae and neutrinos". United States. https://www.osti.gov/servlets/purl/801266.
@article{osti_801266,
title = {Supernovae and neutrinos},
author = {John F. Beacom},
abstractNote = {A long-standing problem in supernova physics is how to measure the total energy and temperature of {nu}{sub {mu}}, {nu}{sub {tau}}, {bar {nu}}{sub {mu}}, and {bar {nu}}{sub {tau}}. While of the highest importance, this is very difficult because these flavors only have neutral-current detector interactions. We propose that neutrino-proton elastic scattering, {nu} + p {yields} {nu} + p, can be used for the detection of supernova neutrinos in scintillator detectors. It should be emphasized immediately that the dominant signal is on free protons. Though the proton recoil kinetic energy spectrum is soft, with T{sub p} {approx_equal} 2E{sub {nu}}{sup 2}/M{sub p}, and the scintillation light output from slow, heavily ionizing protons is quenched, the yield above a realistic threshold is nearly as large as that from {bar {nu}}{sub e} + p {yields} e{sup +} + n. In addition, the measured proton spectrum is related to the incident neutrino spectrum. The ability to detect this signal would give detectors like KamLAND and Borexino a crucial and unique role in the quest to detect supernova neutrinos.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {9}
}

Conference:
Other availability
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