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

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. Univ. of California Santa Cruz, Santa Cruz, CA (United States); Santa Cruz Institute for Particle Physics, Santa Cruz, CA (United States)
  2. Nikhef, Amsterdam (The Netherlands)
  3. Univ. Pierre et Marie Curie, Paris (France)
Publication Date:
Research Org.:
Univ. of California, Santa Cruz, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1326968
Grant/Contract Number:  
SC0010107
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Volume: 2016; Journal Issue: 5; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Mode; cosmology of theories beyond the SM

Citation Formats

D’Eramo, Francesco, de Vries, Jordy, and Panci, Paolo. A 750 GeV portal: LHC phenomenology and dark matter candidates. United States: N. p., 2016. Web. doi:10.1007/JHEP05(2016)089.
D’Eramo, Francesco, de Vries, Jordy, & Panci, Paolo. A 750 GeV portal: LHC phenomenology and dark matter candidates. United States. doi:10.1007/JHEP05(2016)089.
D’Eramo, Francesco, de Vries, Jordy, and Panci, Paolo. Mon . "A 750 GeV portal: LHC phenomenology and dark matter candidates". United States. doi:10.1007/JHEP05(2016)089. https://www.osti.gov/servlets/purl/1326968.
@article{osti_1326968,
title = {A 750 GeV portal: LHC phenomenology and dark matter candidates},
author = {D’Eramo, Francesco and de Vries, Jordy and Panci, Paolo},
abstractNote = {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.},
doi = {10.1007/JHEP05(2016)089},
journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 5,
volume = 2016,
place = {United States},
year = {2016},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 26 works
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    Works referencing / citing this record:

    Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection
    journal, January 2017

    • Gopalakrishna, Shrihari; Mukherjee, Tuhin Subhra
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