PseudoNambuGoldstone dark matter model inspired by grand unification
Abstract
A pseudoNambuGoldstone boson (pNGB) is an attractive candidate for dark matter (DM) due to the simple evasion of the current severe limits of DM direct detection experiments. One of the pNGB DM models has been proposed based on a gauged U (1 )B_{L} symmetry. The pNGB has long enough lifetime to be a DM and thermal relic abundance of pNGB DM can be fit with the observed value against the constraints on the DM decays from the cosmicray observations. The pNGB DM model can be embedded into an S O (10 ) pNGB DM model in the framework of an S O (10 ) grand unified theory, whose S O (10 ) is broken to the PatiSalam gauge group at the unified scale, and further to the Standard Model gauge group at the intermediate scale. Unlike the previous pNGB DM model, the parameters such as the gauge coupling constants of U (1 )B_{L}, the kinetic mixing parameter of between U (1 )_{Y} and U (1 )B_{L} are determined by solving the renormalization group equations for gauge coupling constants with appropriate matching conditions. From the constraints of the DM lifetime and gammaray observations, the pNGB DM mass must be less than O (100 ) GeV . We find that the thermal relic abundance can be consistent with all the constraints when the DM mass is close to half of the C P even Higgs masses.
 Publication:

Physical Review D
 Pub Date:
 August 2021
 DOI:
 10.1103/PhysRevD.104.035011
 arXiv:
 arXiv:2104.13523
 Bibcode:
 2021PhRvD.104c5011A
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 26 pages, 6 tables, 5 figures