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Title: The electroweak phase transition in the Inert Doublet Model

Abstract

We study the strength of a first-order electroweak phase transition in the Inert Doublet Model (IDM), where particle dark matter (DM) is comprised of the lightest neutral inert Higgs boson. We improve over previous studies in the description and treatment of the finite-temperature effective potential and of the electroweak phase transition. We focus on a set of benchmark models inspired by the key mechanisms in the IDM leading to a viable dark matter particle candidate, and illustrate how to enhance the strength of the electroweak phase transition by adjusting the masses of the yet undiscovered IDM Higgs states. We argue that across a variety of DM masses, obtaining a strong enough first-order phase transition is a generic possibility in the IDM. We find that due to direct dark matter searches and collider constraints, a sufficiently strong transition and a thermal relic density matching the universal DM abundance is possible only in the Higgs funnel regime.

Authors:
 [1];  [2];  [3];  [3]; ;  [1];  [2]
  1. Department of Physics, University of California Santa Cruz,1156 High St, Santa Cruz, CA 95064 (United States)
  2. (United States)
  3. (Canada)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22454574
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2015; Journal Issue: 07; Other Information: PUBLISHER-ID: JCAP07(2015)028; OAI: oai:repo.scoap3.org:11141; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BENCHMARKS; DENSITY; HIGGS BOSONS; HIGGS MODEL; NONLUMINOUS MATTER; PHASE TRANSFORMATIONS; RELICT RADIATION; WEINBERG-SALAM GAUGE MODEL

Citation Formats

Blinov, Nikita, Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064, Theory Department, TRIUMF,4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Department of Physics and Astronomy, University of British Columbia,Vancouver, BC V6T 1Z1, Profumo, Stefano, Stefaniak, Tim, and Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064. The electroweak phase transition in the Inert Doublet Model. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/07/028.
Blinov, Nikita, Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064, Theory Department, TRIUMF,4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Department of Physics and Astronomy, University of British Columbia,Vancouver, BC V6T 1Z1, Profumo, Stefano, Stefaniak, Tim, & Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064. The electroweak phase transition in the Inert Doublet Model. United States. doi:10.1088/1475-7516/2015/07/028.
Blinov, Nikita, Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064, Theory Department, TRIUMF,4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Department of Physics and Astronomy, University of British Columbia,Vancouver, BC V6T 1Z1, Profumo, Stefano, Stefaniak, Tim, and Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064. Tue . "The electroweak phase transition in the Inert Doublet Model". United States. doi:10.1088/1475-7516/2015/07/028.
@article{osti_22454574,
title = {The electroweak phase transition in the Inert Doublet Model},
author = {Blinov, Nikita and Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064 and Theory Department, TRIUMF,4004 Wesbrook Mall, Vancouver, BC V6T 2A3 and Department of Physics and Astronomy, University of British Columbia,Vancouver, BC V6T 1Z1 and Profumo, Stefano and Stefaniak, Tim and Santa Cruz Institute for Particle Physics,1156 High St, Santa Cruz, CA 95064},
abstractNote = {We study the strength of a first-order electroweak phase transition in the Inert Doublet Model (IDM), where particle dark matter (DM) is comprised of the lightest neutral inert Higgs boson. We improve over previous studies in the description and treatment of the finite-temperature effective potential and of the electroweak phase transition. We focus on a set of benchmark models inspired by the key mechanisms in the IDM leading to a viable dark matter particle candidate, and illustrate how to enhance the strength of the electroweak phase transition by adjusting the masses of the yet undiscovered IDM Higgs states. We argue that across a variety of DM masses, obtaining a strong enough first-order phase transition is a generic possibility in the IDM. We find that due to direct dark matter searches and collider constraints, a sufficiently strong transition and a thermal relic density matching the universal DM abundance is possible only in the Higgs funnel regime.},
doi = {10.1088/1475-7516/2015/07/028},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 07,
volume = 2015,
place = {United States},
year = {Tue Jul 21 00:00:00 EDT 2015},
month = {Tue Jul 21 00:00:00 EDT 2015}
}