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Type: Conference paper
Title: Combined analysis of effective Higgs portal dark matter models
Author: Beniwal, A.
Rajec, F.
Savage, C.
Scott, P.
Weniger, C.
White, M.
Williams, A.
Citation: PoS - Proceedings of Science, 2016, vol.Part F128556, pp.1-6
Publisher: SISSA
Issue Date: 2016
ISSN: 1824-8039
Conference Name: 38th International Conference on High Energy Physics (ICHEP2016) (3 Aug 2016 - 10 Aug 2016 : Chicago, USA)
Statement of
Ankit Beniwal, Filip Rajec, Christopher Savage, Pat Scott, Christoph Weniger, Martin White and Anthony G. Williams
Abstract: We perform a combined and extended analysis of effective scalar, vector, Majorana and Dirac fermion Higgs portal models of dark matter (DM). In these models, DM couples to the Standard Model (SM) Higgs boson via an operator of the form ODMH†H. For the fermion models, we allow an admixture of the scalar yy and pseudoscalar yig5y interaction terms. On each model, we impose constraints from the Planck measured DM relic density, LHC limits on the Higgs invisible branching ratio, indirect search limits from the WMAP7/Planck observations of the cosmic microwave background, a combined analysis of 15 dwarf spheroidal galaxies by Fermi-LAT and the upcoming Cherenkov Telescope Array (CTA) as well as the direct search limits from the LUX and projected XENON1T experiments. We find in line with previous studies that the direct search experiments will continue to exclude large portions of the model parameter space. Due to the momentum suppression of the direct search cross section in the case of a pure pseudoscalar interaction of a fermionic DM candidate, future indirect searches are the only class of experiments capable of probing the high mass range of the theory.
Description: Session: Beyond the Standard Model
Rights: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
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