Mixed Wino-Axion Dark Matter in String/M Theory and the 130 GeV Gamma-line 'Signal'

Autor:	Acharya, Bobby Samir, Kane, Gordon, Kumar, Piyush, Lu, Ran, Zheng, Bob
Rok vydání:	2012
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Extragalactic Astrophysics High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	String/M theory compactifications with low energy supersymmetry tend to predict that dark matter has two components: axions and WIMPs \cite{1004.5138,1204.2795}. In accord with this, we show that the tentative 130 GeV gamma-line signal reported in \cite{1204.2797} can be interpreted as arising from the annihilation of 145 GeV mass, Wino-like WIMPs into a Z-boson and a photon. In this context, the signal implies a second component of dark matter which we interpret as being composed of axions - the relative Wino/Axion abundances being approximately equal. Further predictions are implied: signals in both diffuse and monochromatic photons from dwarf spheroidal galaxies; monochromatic photons with energy 145 GeV; for the LHC, the Higgs boson mass has been predicted in this framework \cite{1112.1059}, and the current Higgs limits provide interesting constraints on the mass of the Gluino. Comment: 9 pages, 5 Figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1205.5789 Zobrazit plný text záznamu View this record from Arxiv