Galactic center gamma-ray excess and higgs-portal dark matter

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dc.contributor.author Mondal, Tanmoy
dc.contributor.author Basak, Tanushree
dc.coverage.spatial Guwahati, IN
dc.date.accessioned 2016-02-12T12:03:21Z
dc.date.available 2016-02-12T12:03:21Z
dc.date.issued 2014-12
dc.identifier.citation Mondal, Tanmoy and Basak, Tanushree, "Galactic center gamma-ray excess and higgs-portal dark matter", in the XXI DAE-BRNS High Energy Physics Symposium, Indian Institute of Technology Guwahati, IN, Dec. 8-21, 2014. en_US
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/2090
dc.description.abstract From astronomical observations, we know that dark matter exists and makes up ∼25 % of our Universe. Recently the study of anomalous gamma-ray emission in the regions surrounding the galactic center has drawn a lot of attention. It has been pointed out that the excess of 1–3 GeV gamma-ray in the low latitude is consistent with the emission expected from annihilating dark matter. I will discuss the Higgs-portal dark matter models which can explain these phenomena because of the presence of scalar resonance. In addition, the parameter space of these models also satisfy constraints from the LHC Higgs searches, relic abundance and direct detection experiments. The gauged U(1)B−L model is very well suited with the FERMI-LAT observation along with other constraints. en_US
dc.description.statementofresponsibility by Tanmoy Mondal and Tanushree Basak
dc.language.iso en_US en_US
dc.publisher DAE-BRNS High Energy Physics Symposium en_US
dc.subject Galactic center gamma-ray excess en_US
dc.subject Higgs-portal dark matter en_US
dc.subject Astronomical observations en_US
dc.subject Gauged U(1)B−L model en_US
dc.title Galactic center gamma-ray excess and higgs-portal dark matter en_US
dc.type Article en_US


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