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Title: Dark Matter Elastic Scattering Through Higgs Loops [Everything you always wanted to know but were afraid to ask]

We consider a complete list of simplifieed models in which Majorana dark matter particles annihilate at tree level to hh or hZ finnal states, and calculate the loop-induced elastic scattering cross section with nuclei in each case. Expressions for these annihilation and elastic scattering cross sections are provided, and can be easily applied to a variety of UV complete models. We identify several phenomenologically viable scenarios, including dark matter that annihilates through the s-channel exchange of a spin-zero mediator or through the t-channel exchange of a fermion. Although the elastic scattering cross sections predicted in this class of models are generally quite small, XENON1Tand LZ should be sensitive to significant regions of this parameter space. Models in which the dark matter annihilates to hh or hZ can also generate a gamma-ray signal that is compatible with the excess observed from the Galactic Center.
 [1] ;  [2] ;  [3]
  1. Univ. of Chicago, IL (United States)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States)
  3. Stony Brook Univ., NY (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
FERMILAB-PUB-15-359-A; YITP-SB-15-29
Journal ID: ISSN 2470-0010; PRVDAQ; arXiv eprint number arXiv:1508.05390
Grant/Contract Number:
AC02-07CH11359; FG02-13ER41958
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 92; Journal Issue: 12; Journal ID: ISSN 2470-0010
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States