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Title: A simple testable model of baryon number violation: Baryogenesis, dark matter, neutron–antineutron oscillation and collider signals

Abstract

We study a simple TeV-scale model of baryon number violation which explains the observed proximity of the dark matter and baryon abundances. The model has constraints arising from both low and high-energy processes, and in particular, predicts a sizable rate for the neutron–antineutron ( nn¯) oscillation at low energy and the monojet signal at the LHC. We find an interesting complementarity among the constraints arising from the observed baryon asymmetry, ratio of dark matter and baryon abundances, nn¯ oscillation lifetime and the LHC monojet signal. There are regions in the parameter space where the oscillation lifetime is found to be more constraining than the LHC constraints, which illustrates the importance of the next-generation nn¯ oscillation experiments.

Authors:
; ORCiD logo;
Publication Date:
Research Org.:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1420358
Alternate Identifier(s):
OSTI ID: 1545992
Grant/Contract Number:  
de-sc0010813; SC0010813
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 779 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Allahverdi, Rouzbeh, Dev, P. S. Bhupal, and Dutta, Bhaskar. A simple testable model of baryon number violation: Baryogenesis, dark matter, neutron–antineutron oscillation and collider signals. Netherlands: N. p., 2018. Web. doi:10.1016/j.physletb.2018.02.019.
Allahverdi, Rouzbeh, Dev, P. S. Bhupal, & Dutta, Bhaskar. A simple testable model of baryon number violation: Baryogenesis, dark matter, neutron–antineutron oscillation and collider signals. Netherlands. doi:10.1016/j.physletb.2018.02.019.
Allahverdi, Rouzbeh, Dev, P. S. Bhupal, and Dutta, Bhaskar. Sun . "A simple testable model of baryon number violation: Baryogenesis, dark matter, neutron–antineutron oscillation and collider signals". Netherlands. doi:10.1016/j.physletb.2018.02.019.
@article{osti_1420358,
title = {A simple testable model of baryon number violation: Baryogenesis, dark matter, neutron–antineutron oscillation and collider signals},
author = {Allahverdi, Rouzbeh and Dev, P. S. Bhupal and Dutta, Bhaskar},
abstractNote = {We study a simple TeV-scale model of baryon number violation which explains the observed proximity of the dark matter and baryon abundances. The model has constraints arising from both low and high-energy processes, and in particular, predicts a sizable rate for the neutron–antineutron (n – n¯) oscillation at low energy and the monojet signal at the LHC. We find an interesting complementarity among the constraints arising from the observed baryon asymmetry, ratio of dark matter and baryon abundances, n – n¯ oscillation lifetime and the LHC monojet signal. There are regions in the parameter space where the oscillation lifetime is found to be more constraining than the LHC constraints, which illustrates the importance of the next-generation n – n¯ oscillation experiments.},
doi = {10.1016/j.physletb.2018.02.019},
journal = {Physics Letters B},
number = C,
volume = 779,
place = {Netherlands},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2018.02.019

Citation Metrics:
Cited by: 7 works
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