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Title: Unified scenario for composite right-handed neutrinos and dark matter

Abstract

In this study, we entertain the possibility that neutrino masses and dark matter (DM) originate from a common composite dark sector. A minimal effective theory can be constructed based on a dark SU(3) D interaction with three flavors of massless dark quarks; electroweak symmetry breaking gives masses to the dark quarks. By assigning a Z 2 charge to one flavor, a stable “dark kaon” can provide a good thermal relic DM candidate. We find that “dark neutrons” may be identified as right handed Dirac neutrinos. Some level of “neutron-anti-neutron” oscillation in the dark sector can then result in non-zero Majorana masses for light standard model neutrinos. A simple ultraviolet completion is presented, involving additional heavy SU(3) D-charged particles with electroweak and lepton Yukawa couplings. At our benchmark point, there are “dark pions” that are much lighter than the Higgs and we expect spectacular collider signals arising from the UV framework. This includes the decay of the Higgs boson to ττℓℓ', where ℓ(ℓ ') can be any lepton, with displaced vertices. Finally, we discuss the observational signatures of this UV framework in dark matter searches and primordial gravitational wave experiments; the latter signature is potentially correlated with the H → ττℓℓ'more » decay.« less

Authors:
 [1];  [1];  [2];  [3]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Department of Physics
  2. Univ. of Colorado, Boulder, CO (United States). Department of Physics; Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN-BNL Research Center
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN-BNL Research Center
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1424955
Alternate Identifier(s):
OSTI ID: 1411481
Report Number(s):
BNL-200046-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; TRN: US1801977
Grant/Contract Number:  
SC0012704; SC0010005
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Davoudiasl, Hooman, Giardino, Pier Paolo, Neil, Ethan T., and Rinaldi, Enrico. Unified scenario for composite right-handed neutrinos and dark matter. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.96.115003.
Davoudiasl, Hooman, Giardino, Pier Paolo, Neil, Ethan T., & Rinaldi, Enrico. Unified scenario for composite right-handed neutrinos and dark matter. United States. doi:10.1103/PhysRevD.96.115003.
Davoudiasl, Hooman, Giardino, Pier Paolo, Neil, Ethan T., and Rinaldi, Enrico. Wed . "Unified scenario for composite right-handed neutrinos and dark matter". United States. doi:10.1103/PhysRevD.96.115003. https://www.osti.gov/servlets/purl/1424955.
@article{osti_1424955,
title = {Unified scenario for composite right-handed neutrinos and dark matter},
author = {Davoudiasl, Hooman and Giardino, Pier Paolo and Neil, Ethan T. and Rinaldi, Enrico},
abstractNote = {In this study, we entertain the possibility that neutrino masses and dark matter (DM) originate from a common composite dark sector. A minimal effective theory can be constructed based on a dark SU(3)D interaction with three flavors of massless dark quarks; electroweak symmetry breaking gives masses to the dark quarks. By assigning a Z2 charge to one flavor, a stable “dark kaon” can provide a good thermal relic DM candidate. We find that “dark neutrons” may be identified as right handed Dirac neutrinos. Some level of “neutron-anti-neutron” oscillation in the dark sector can then result in non-zero Majorana masses for light standard model neutrinos. A simple ultraviolet completion is presented, involving additional heavy SU(3)D-charged particles with electroweak and lepton Yukawa couplings. At our benchmark point, there are “dark pions” that are much lighter than the Higgs and we expect spectacular collider signals arising from the UV framework. This includes the decay of the Higgs boson to ττℓℓ', where ℓ(ℓ ') can be any lepton, with displaced vertices. Finally, we discuss the observational signatures of this UV framework in dark matter searches and primordial gravitational wave experiments; the latter signature is potentially correlated with the H → ττℓℓ' decay.},
doi = {10.1103/PhysRevD.96.115003},
journal = {Physical Review D},
number = 11,
volume = 96,
place = {United States},
year = {2017},
month = {12}
}

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