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Title: Baryon destruction by asymmetric dark matter

Abstract

We investigate new and unusual signals that arise in theories where dark matter is asymmetric and carries a net antibaryon number, as may occur when the dark matter abundance is linked to the baryon abundance. Antibaryonic dark matter can cause induced nucleon decay by annihilating visible baryons through inelastic scattering. These processes lead to an effective nucleon lifetime of 10{sup 29}-10{sup 32} yrs in terrestrial nucleon decay experiments, if baryon number transfer between visible and dark sectors arises through new physics at the weak scale. The possibility of induced nucleon decay motivates a novel approach for direct detection of cosmic dark matter in nucleon decay experiments. Monojet searches (and related signatures) at hadron colliders also provide a complementary probe of weak-scale dark-matter-induced baryon number violation. Finally, we discuss the effects of baryon-destroying dark matter on stellar systems and show that it can be consistent with existing observations.

Authors:
 [1]; ;  [2];  [3]
  1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  2. Theory Group, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3 (Canada)
  3. Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada)
Publication Date:
OSTI Identifier:
21608082
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 84; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.84.096008; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANTIBARYONS; ASYMMETRY; BARYON NUMBER; DETECTION; INELASTIC SCATTERING; LIFETIME; NONLUMINOUS MATTER; NUCLEONS; PARTICLE DECAY; ANTIMATTER; ANTIPARTICLES; BARYONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; MATTER; SCATTERING

Citation Formats

Davoudiasl, Hooman, Morrissey, David E., Tulin, Sean, and Sigurdson, Kris. Baryon destruction by asymmetric dark matter. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.84.096008.
Davoudiasl, Hooman, Morrissey, David E., Tulin, Sean, & Sigurdson, Kris. Baryon destruction by asymmetric dark matter. United States. doi:10.1103/PHYSREVD.84.096008.
Davoudiasl, Hooman, Morrissey, David E., Tulin, Sean, and Sigurdson, Kris. Tue . "Baryon destruction by asymmetric dark matter". United States. doi:10.1103/PHYSREVD.84.096008.
@article{osti_21608082,
title = {Baryon destruction by asymmetric dark matter},
author = {Davoudiasl, Hooman and Morrissey, David E. and Tulin, Sean and Sigurdson, Kris},
abstractNote = {We investigate new and unusual signals that arise in theories where dark matter is asymmetric and carries a net antibaryon number, as may occur when the dark matter abundance is linked to the baryon abundance. Antibaryonic dark matter can cause induced nucleon decay by annihilating visible baryons through inelastic scattering. These processes lead to an effective nucleon lifetime of 10{sup 29}-10{sup 32} yrs in terrestrial nucleon decay experiments, if baryon number transfer between visible and dark sectors arises through new physics at the weak scale. The possibility of induced nucleon decay motivates a novel approach for direct detection of cosmic dark matter in nucleon decay experiments. Monojet searches (and related signatures) at hadron colliders also provide a complementary probe of weak-scale dark-matter-induced baryon number violation. Finally, we discuss the effects of baryon-destroying dark matter on stellar systems and show that it can be consistent with existing observations.},
doi = {10.1103/PHYSREVD.84.096008},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 9,
volume = 84,
place = {United States},
year = {2011},
month = {11}
}