Extra U(1) as natural source of a monochromatic gamma ray line

Emilian Dudas; Yann Mambrini; Stefan Pokorski; Alberto Romagnoni

doi:10.1007/JHEP10(2012)123

Extra U(1) as natural source of a monochromatic gamma ray line

Emilian Dudas
, Yann Mambrini
, Stefan Pokorski
, Alberto Romagnoni

Research output: Contribution to journal › Article › peer-review

Abstract

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-ray line which can fit a 130GeV signal at the FERMI telescope for natural values of the Chern-Simons terms and a dark matter mass around 144.5GeV.

Original language	English
Article number	123
Journal	Journal of High Energy Physics
Volume	2012
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2012)123
Publication status	Published - 1 Oct 2012

Keywords

Beyond standard model
Cosmology of theories beyond the SM
Gauge symmetry

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10.1007/JHEP10(2012)123

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abstract = "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-ray line which can fit a 130GeV signal at the FERMI telescope for natural values of the Chern-Simons terms and a dark matter mass around 144.5GeV.",

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AU - Mambrini, Yann

AU - Pokorski, Stefan

AU - Romagnoni, Alberto

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N2 - 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-ray line which can fit a 130GeV signal at the FERMI telescope for natural values of the Chern-Simons terms and a dark matter mass around 144.5GeV.

AB - 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-ray line which can fit a 130GeV signal at the FERMI telescope for natural values of the Chern-Simons terms and a dark matter mass around 144.5GeV.

KW - Beyond standard model

KW - Cosmology of theories beyond the SM

KW - Gauge symmetry

U2 - 10.1007/JHEP10(2012)123

DO - 10.1007/JHEP10(2012)123

M3 - Article

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VL - 2012

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 123

ER -

Extra U(1) as natural source of a monochromatic gamma ray line

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Keywords

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