A 750 GeV portal: LHC phenomenology and dark matter candidates

D’Eramo, Francesco; de Vries, Jordy; Panci, Paolo

doi:10.1007/JHEP05(2016)089

Title: A 750 GeV portal: LHC phenomenology and dark matter candidates

Journal Article · Mon May 16 00:00:00 EDT 2016 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP05(2016)089· OSTI ID:1326968

D’Eramo, Francesco ^[1]; de Vries, Jordy ^[2]; Panci, Paolo ^[3]

Univ. of California Santa Cruz, Santa Cruz, CA (United States); Santa Cruz Institute for Particle Physics, Santa Cruz, CA (United States)
Nikhef, Amsterdam (The Netherlands)
Univ. Pierre et Marie Curie, Paris (France)

We study the effective field theory obtained by extending the Standard Model field content with two singlets: a 750 GeV (pseudo-)scalar and a stable fermion. Accounting for collider productions initiated by both gluon and photon fusion, we investigate where the theory is consistent with both the LHC diphoton excess and bounds from Run 1. We analyze dark matter phenomenology in such regions, including relic density constraints as well as collider, direct, and indirect bounds. Scalar portal dark matter models are very close to limits from direct detection and mono-jet searches if gluon fusion dominates, and not constrained at all otherwise. In conclusion, pseudo-scalar models are challenged by photon line limits and mono-jet searches in most of the parameter space.

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Research Organization:: Univ. of California, Santa Cruz, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0010107

OSTI ID:: 1326968

Journal Information:: Journal of High Energy Physics (Online), Vol. 2016, Issue 5; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 36 works

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