Singlet-Doublet Dark Matter

Cohen, Timothy ; /SLAC /Michigan U., MCTP ; Kearney, John ; Pierce, Aaron ; /Michigan U., MCTP ; Tucker-Smith, David ; Coll., /Williams

SLAC National Accelerator Laboratory

关键词: Standard Model;    Scalars;    Nonluminous Matter;    Cross Sections;    Higgs Bosons;   

DOI  :  10.2172/1035103
RP-ID  :  SLAC-PUB-14584
RP-ID  :  AC02-76SF00515
RP-ID  :  1035103

美国|英语

来源: UNT Digital Library

【 摘 要 】

In light of recent data from direct detection experiments and the Large Hadron Collider, we explore models of dark matter in which an SU(2){sub L} doublet is mixed with a Standard Model singlet. We impose a thermal history. If the new particles are fermions, this model is already constrained due to null results from XENON100. We comment on remaining regions of parameter space and assess prospects for future discovery. We do the same for the model where the new particles are scalars, which at present is less constrained. Much of the remaining parameter space for both models will be probed by the next generation of direct detection experiments. For the fermion model, DeepCore may also play an important role.