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Title: Toward (finally!) ruling out Z and Higgs mediated dark matter models

Abstract

In recent years, direct detection, indirect detection, and collider experiments have placed increasingly stringent constraints on particle dark matter, exploring much of the parameter space associated with the WIMP paradigm. In this paper, we focus on the subset of WIMP models in which the dark matter annihilates in the early universe through couplings to either the Standard Model Z or the Standard Model Higgs boson. Considering fermionic, scalar, and vector dark matter candidates within a model-independent context, we find that the overwhelming majority of these dark matter candidates are already ruled out by existing experiments. In the case of Z mediated dark matter, the only scenarios that are not currently excluded are those in which the dark matter is a fermion with an axial coupling and with a mass either within a few GeV of the Z resonance ( m {sub DM} ≅ m {sub Z} /2) or greater than 200 GeV, or with a vector coupling and with m {sub DM} > 6 TeV . Several Higgs mediated scenarios are currently viable if the mass of the dark matter is near the Higgs pole ( m {sub DM} ≅ m {sub H} /2). Otherwise, the only scenarios that aremore » not excluded are those in which the dark matter is a scalar (vector) heavier than 400 GeV (1160 GeV) with a Higgs portal coupling, or a fermion with a pseudoscalar (CP violating) coupling to the Standard Model Higgs boson. With the exception of dark matter with a purely pseudoscalar coupling to the Higgs, it is anticipated that planned direct detection experiments will probe nearly the entire range of models considered in this study.« less

Authors:
 [1];  [2];  [3];  [4]
  1. Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, Apartado de Correos 22085, E-46071 Valencia (Spain)
  2. Department of Physics, University of Chicago, Chicago, IL 60637 (United States)
  3. Fermi National Accelerator Laboratory, Center for Particle Astrophysics, Batavia, IL 60510 (United States)
  4. Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States)
Publication Date:
OSTI Identifier:
22680133
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2016; Journal Issue: 12; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COUPLING; CP INVARIANCE; DETECTION; GEV RANGE; HIGGS BOSONS; HIGGS MODEL; MASS; NONLUMINOUS MATTER; PSEUDOSCALARS; SPACE; STANDARD MODEL; TEV RANGE; UNIVERSE; WIMPS; Z*BARYONS

Citation Formats

Escudero, Miguel, Berlin, Asher, Hooper, Dan, and Lin, Meng-Xiang. Toward (finally!) ruling out Z and Higgs mediated dark matter models. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/12/029.
Escudero, Miguel, Berlin, Asher, Hooper, Dan, & Lin, Meng-Xiang. Toward (finally!) ruling out Z and Higgs mediated dark matter models. United States. doi:10.1088/1475-7516/2016/12/029.
Escudero, Miguel, Berlin, Asher, Hooper, Dan, and Lin, Meng-Xiang. Thu . "Toward (finally!) ruling out Z and Higgs mediated dark matter models". United States. doi:10.1088/1475-7516/2016/12/029.
@article{osti_22680133,
title = {Toward (finally!) ruling out Z and Higgs mediated dark matter models},
author = {Escudero, Miguel and Berlin, Asher and Hooper, Dan and Lin, Meng-Xiang},
abstractNote = {In recent years, direct detection, indirect detection, and collider experiments have placed increasingly stringent constraints on particle dark matter, exploring much of the parameter space associated with the WIMP paradigm. In this paper, we focus on the subset of WIMP models in which the dark matter annihilates in the early universe through couplings to either the Standard Model Z or the Standard Model Higgs boson. Considering fermionic, scalar, and vector dark matter candidates within a model-independent context, we find that the overwhelming majority of these dark matter candidates are already ruled out by existing experiments. In the case of Z mediated dark matter, the only scenarios that are not currently excluded are those in which the dark matter is a fermion with an axial coupling and with a mass either within a few GeV of the Z resonance ( m {sub DM} ≅ m {sub Z} /2) or greater than 200 GeV, or with a vector coupling and with m {sub DM} > 6 TeV . Several Higgs mediated scenarios are currently viable if the mass of the dark matter is near the Higgs pole ( m {sub DM} ≅ m {sub H} /2). Otherwise, the only scenarios that are not excluded are those in which the dark matter is a scalar (vector) heavier than 400 GeV (1160 GeV) with a Higgs portal coupling, or a fermion with a pseudoscalar (CP violating) coupling to the Standard Model Higgs boson. With the exception of dark matter with a purely pseudoscalar coupling to the Higgs, it is anticipated that planned direct detection experiments will probe nearly the entire range of models considered in this study.},
doi = {10.1088/1475-7516/2016/12/029},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 12,
volume = 2016,
place = {United States},
year = {2016},
month = {12}
}

Works referencing / citing this record:

Impact of vacuum stability, perturbativity and XENON1T on global fits of $$\mathbb {Z}_2$$ Z 2 and $$\mathbb {Z}_3$$ Z 3 scalar singlet dark matter
journal, October 2018


Global analyses of Higgs portal singlet dark matter models using GAMBIT
journal, January 2019