Extra U(1) as natural source of a monochromatic gamma ray line
نویسندگان
چکیده
منابع مشابه
Extra U(1) as natural source of a monochromatic gamma ray line
Extensions of the Standard Model with an extra U′(1) abelian group generically generate terms coming from loops of heavy fermions, leading to three gauge boson couplings, in particular Z ′Zγ. We show that WMAP data constrains the gauge coupling of the group gD to values comparable with the electro-weak ones, rather independently of the mass of Z ′. Moreover, the model predicts a monochromatic γ...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2012
ISSN: 1029-8479
DOI: 10.1007/jhep10(2012)123