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Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection
Joint Authors
Gopalakrishna, Shrihari
Mukherjee, Tuhin Subhra
Source
Advances in High Energy Physics
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-17
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
We study a gauge-singlet vector-like fermion hidden sector dark matter model, in which the communication between the dark matter and the visible standard model sector is via the Higgs-portal scalar-Higgs mixing and also via a hidden sector scalar with loop-level couplings to two gluons and also to two hypercharge gauge bosons induced by a vector-like quark.
We find that the Higgs-portal possibility is stringently constrained to be small by the recent LHC di-Higgs search limits, and the loop induced couplings are important to include.
In the model parameter space, we present the dark matter relic density, the dark-matter-nucleon direct detection scattering cross section, the LHC diphoton rate from gluon-gluon fusion, and the theoretical upper bounds on the fermion-scalar couplings from perturbative unitarity.
American Psychological Association (APA)
Gopalakrishna, Shrihari& Mukherjee, Tuhin Subhra. 2017. Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection. Advances in High Energy Physics،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1122242
Modern Language Association (MLA)
Gopalakrishna, Shrihari& Mukherjee, Tuhin Subhra. Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection. Advances in High Energy Physics No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1122242
American Medical Association (AMA)
Gopalakrishna, Shrihari& Mukherjee, Tuhin Subhra. Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection. Advances in High Energy Physics. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1122242
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122242