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Title: Asymmetric dark matter and baryogenesis from $$SU(2)_ℓ$$

Journal Article · · Physical Review. D.
 [1];  [2];  [2];  [2]
  1. University of California, Irvine, CA (United States); University of California San Diego, La Jolla, CA (United States)
  2. University of California, Irvine, CA (United States)
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Here we propose a theory in which the Standard Model gauge symmetry is extended by a new SU(2)ℓ group acting nontrivially on the lepton sector which is spontaneously broken at the TeV scale. Under this SU(2)ℓ the ordinary leptons form doublets along with new lepton partner fields. This construction naturally contains a dark matter candidate, the partner of the right-handed neutrino, stabilized by a residual global U(1)χ symmetry. We show that one can explain baryogenesis through an asymmetric dark matter scenario, in which generation of related asymmetries in the dark matter and baryon sectors is driven by the SU(2)ℓ instantons during a first order phase transition in the early Universe.

Research Organization:
University of California San Diego, La Jolla, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF)
Grant/Contract Number:
SC0009919; PHY-1316792
OSTI ID:
1536357
Alternate ID(s):
OSTI ID: 1374065
Report Number(s):
UCI-HEP-TR-2016-20
Journal Information:
Physical Review. D., Vol. 96, Issue 3; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
baryogenesis and leptogenesis
extensions of Higgs sector
extensions of fermion sector
extensions of gauge sector
finite temperature field theory
gauge theories
hypothetical particle physics models
particle dark matter
particle interactions
spontaneous symmetry breaking
symmetries