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Title: Solar System constraints and signatures for dark-matter candidates

Abstract

We show that if our galactic halo were to consist of scalar or Dirac neutrinos with mass greater than approx.12 GeV, capture by the Earth and subsequent annihilation would yield a large flux of neutrinos at the surface which could be seen in proton-decay detectors. The luminosity of Uranus provides comparable constraints. Capture in the Sun can yield supplementary information, with detectable signals possible for masses as low as 6 GeV for both Dirac and Majorana neutrinos, scalar neutrinos, and photinos. We discuss in detail the question of evaporation, on which our results and others depend sensitively. We suggest one method of approximating evaporation rates from the Earth and Sun and discuss potential problems with earlier estimates. Finally, we describe how particles which avoid these constraints may still be detectable by bolometric neutrino detectors and isolate a new method to remove backgrounds to this signal in such detectors.

Authors:
; ;
Publication Date:
Research Org.:
Department of Physics, Harvard University, Cambridge, Massachusetts 02138
OSTI Identifier:
5976465
Resource Type:
Journal Article
Journal Name:
Phys. Rev. D; (United States)
Additional Journal Information:
Journal Volume: 33:8
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; GALAXIES; NEUTRINOS; SOLAR NEUTRINOS; ANNIHILATION; MASS; CROSS SECTIONS; DECAY; DIRAC EQUATION; ELASTIC SCATTERING; EVAPORATION MODEL; MONTE CARLO METHOD; PROTONS; WEAK INTERACTIONS; BARYONS; BASIC INTERACTIONS; DIFFERENTIAL EQUATIONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; HADRONS; INTERACTIONS; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEONS; PARTIAL DIFFERENTIAL EQUATIONS; RADIATIONS; SCATTERING; SOLAR PARTICLES; SOLAR RADIATION; STELLAR RADIATION; WAVE EQUATIONS; 640101* - Astrophysics & Cosmology- Cosmic Radiation; 645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties

Citation Formats

Krauss, L M, Srednicki, M, and Wilczek, F. Solar System constraints and signatures for dark-matter candidates. United States: N. p., 1986. Web. doi:10.1103/PhysRevD.33.2079.
Krauss, L M, Srednicki, M, & Wilczek, F. Solar System constraints and signatures for dark-matter candidates. United States. https://doi.org/10.1103/PhysRevD.33.2079
Krauss, L M, Srednicki, M, and Wilczek, F. 1986. "Solar System constraints and signatures for dark-matter candidates". United States. https://doi.org/10.1103/PhysRevD.33.2079.
@article{osti_5976465,
title = {Solar System constraints and signatures for dark-matter candidates},
author = {Krauss, L M and Srednicki, M and Wilczek, F},
abstractNote = {We show that if our galactic halo were to consist of scalar or Dirac neutrinos with mass greater than approx.12 GeV, capture by the Earth and subsequent annihilation would yield a large flux of neutrinos at the surface which could be seen in proton-decay detectors. The luminosity of Uranus provides comparable constraints. Capture in the Sun can yield supplementary information, with detectable signals possible for masses as low as 6 GeV for both Dirac and Majorana neutrinos, scalar neutrinos, and photinos. We discuss in detail the question of evaporation, on which our results and others depend sensitively. We suggest one method of approximating evaporation rates from the Earth and Sun and discuss potential problems with earlier estimates. Finally, we describe how particles which avoid these constraints may still be detectable by bolometric neutrino detectors and isolate a new method to remove backgrounds to this signal in such detectors.},
doi = {10.1103/PhysRevD.33.2079},
url = {https://www.osti.gov/biblio/5976465}, journal = {Phys. Rev. D; (United States)},
number = ,
volume = 33:8,
place = {United States},
year = {Tue Apr 15 00:00:00 EST 1986},
month = {Tue Apr 15 00:00:00 EST 1986}
}