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Title: Asymmetric dark matter models and the LHC diphoton excess

Abstract

The existence of dark matter (DM) and the origin of the baryon asymmetry are persistent indications that the SM is incomplete. More recently, the ATLAS and CMS experiments have observed an excess of diphoton events with invariant mass of about 750 GeV. One interpretation of this excess is decays of a new spin-0 particle with a sizable diphoton partial width, e.g. induced by new heavy weakly charged particles. These are also key ingredients in models cogenerating asymmetric DM and baryons via sphaleron interactions and an initial particle asymmetry. We explore what consequences the new scalar may have for models of asymmetric DM that attempt to account for the similarity of the dark and visible matter abundances.

Authors:
 [1];  [2]
  1. CP"3-Origins & Danish Institute for Advanced Study DIAS,University of Southern Denmark,Campusvej 55, DK-5230 Odense M (Denmark)
  2. Department of Physics, Department of Astronomy & Astrophysics,Center for Particle and Gravitational Astrophysics, The Pennsylvania State University,104 Davey Laboratory, University Park, PA 16802 (United States)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572088
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 05; Other Information: PUBLISHER-ID: JCAP05(2016)064; OAI: oai:repo.scoap3.org:15823; cc-by 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; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; ATLAS DETECTOR; BARYONS; CERN LHC; CHARGED PARTICLES; CMS DETECTOR; GEV RANGE 100-1000; NONLUMINOUS MATTER; PARTICLE WIDTHS; PHOTONS; POSTULATED PARTICLES; STANDARD MODEL

Citation Formats

Frandsen, Mads T., and Shoemaker, Ian M. Asymmetric dark matter models and the LHC diphoton excess. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/05/064.
Frandsen, Mads T., & Shoemaker, Ian M. Asymmetric dark matter models and the LHC diphoton excess. United States. doi:10.1088/1475-7516/2016/05/064.
Frandsen, Mads T., and Shoemaker, Ian M. Tue . "Asymmetric dark matter models and the LHC diphoton excess". United States. doi:10.1088/1475-7516/2016/05/064.
@article{osti_22572088,
title = {Asymmetric dark matter models and the LHC diphoton excess},
author = {Frandsen, Mads T. and Shoemaker, Ian M.},
abstractNote = {The existence of dark matter (DM) and the origin of the baryon asymmetry are persistent indications that the SM is incomplete. More recently, the ATLAS and CMS experiments have observed an excess of diphoton events with invariant mass of about 750 GeV. One interpretation of this excess is decays of a new spin-0 particle with a sizable diphoton partial width, e.g. induced by new heavy weakly charged particles. These are also key ingredients in models cogenerating asymmetric DM and baryons via sphaleron interactions and an initial particle asymmetry. We explore what consequences the new scalar may have for models of asymmetric DM that attempt to account for the similarity of the dark and visible matter abundances.},
doi = {10.1088/1475-7516/2016/05/064},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2016,
place = {United States},
year = {Tue May 31 00:00:00 EDT 2016},
month = {Tue May 31 00:00:00 EDT 2016}
}