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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:
; ; ;
Publication Date:
Research Org.:
BROOKHAVEN NATIONAL LABORATORY (BNL)
Sponsoring Org.:
USDOE SC OFFICE OF SCIENCE (SC)
OSTI Identifier:
1050430
Report Number(s):
BNL-96863-2012-JA
Journal ID: ISSN 1550-7998; KA1401020; TRN: US1204647
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 84; Journal Issue: 9; Journal ID: ISSN 1550-7998
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABUNDANCE; ANTIBARYONS; BARYON NUMBER; BARYONS; DECAY; DETECTION; HADRONS; INELASTIC SCATTERING; LIFETIME; NONLUMINOUS MATTER; NUCLEONS; PHYSICS; PROBES

Citation Formats

Davoudiasl H., Morrissey, D., Sigurdson, K., and Tulin, S. Baryon destruction by asymmetric dark matter. United States: N. p., 2011. Web. doi:10.1103/PhysRevD.84.096008.
Davoudiasl H., Morrissey, D., Sigurdson, K., & Tulin, S. Baryon destruction by asymmetric dark matter. United States. doi:10.1103/PhysRevD.84.096008.
Davoudiasl H., Morrissey, D., Sigurdson, K., and Tulin, S. Thu . "Baryon destruction by asymmetric dark matter". United States. doi:10.1103/PhysRevD.84.096008.
@article{osti_1050430,
title = {Baryon destruction by asymmetric dark matter},
author = {Davoudiasl H. and Morrissey, D. and Sigurdson, K. and Tulin, S.},
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, Gravitation and Cosmology},
issn = {1550-7998},
number = 9,
volume = 84,
place = {United States},
year = {2011},
month = {11}
}