Asymmetric dark matter models and the LHC diphoton excess
- CP"3-Origins & Danish Institute for Advanced Study DIAS,University of Southern Denmark,Campusvej 55, DK-5230 Odense M (Denmark)
- 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)
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.
- Sponsoring Organization:
- SCOAP3, CERN, Geneva (Switzerland)
- OSTI ID:
- 22572088
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2016, 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); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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