Asymmetric dark matter models and the LHC diphoton excess

被引：5
作者：
Frandsen, Mads T. [1 ]
Shoemaker, Ian M. [2 ]
机构：
[1] Univ Southern Denmark, Origins & Danish Inst Adv Study DIAS CP3, Campusvej 55, DK-5230 Odense M, Denmark
[2] Penn State Univ, Dept Astron & Astrophys, Dept Phys, Ctr Particle & Gravitat Astrophys, 104 Davey Lab, University Pk, PA 16802 USA
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2016年 / 05期
关键词：
baryon asymmetry; dark matter experiments; dark matter theory; F-THEORY; RESONANCE; PARTICLES; BARYON; NUMBER; LIGHT; DECAY; AXION;
D O I：
10.1088/1475-7516/2016/05/064
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
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页数：27
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