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Title: 750 GeV diphotons: implications for supersymmetric unification

Abstract

A recent signal of 750 GeV diphotons at the LHC can be explained within the framework of supersymmetric unification by the introduction of vector quarks and leptons with Yukawa couplings to a singlet S that describes the 750 GeV resonance. We study the most general set of theories that allow successful gauge coupling unification, and find that these Yukawa couplings are severely constrained by renormalization group behavior: they are independent of ultraviolet physics and flow to values at the TeV scale that we calculate precisely. As a consequence the vector quarks and leptons must be light; typically in the region of 375 GeV to 700 GeV, and in certain cases up to 1 TeV. The 750 GeV resonance may have a width less than the experimental resolution; alternatively, with the mass splitting between scalar and pseudoscalar components of S arising from one-loop diagrams involving vector fermions, we compute an apparent width of 10s of GeV.

Authors:
 [1];  [1];  [1]
  1. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1412516
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 3; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Supersymmetry Phenomenology

Citation Formats

Hall, Lawrence J., Harigaya, Keisuke, and Nomura, Yasunori. 750 GeV diphotons: implications for supersymmetric unification. United States: N. p., 2016. Web. doi:10.1007/JHEP03(2016)017.
Hall, Lawrence J., Harigaya, Keisuke, & Nomura, Yasunori. 750 GeV diphotons: implications for supersymmetric unification. United States. doi:10.1007/JHEP03(2016)017.
Hall, Lawrence J., Harigaya, Keisuke, and Nomura, Yasunori. Thu . "750 GeV diphotons: implications for supersymmetric unification". United States. doi:10.1007/JHEP03(2016)017. https://www.osti.gov/servlets/purl/1412516.
@article{osti_1412516,
title = {750 GeV diphotons: implications for supersymmetric unification},
author = {Hall, Lawrence J. and Harigaya, Keisuke and Nomura, Yasunori},
abstractNote = {A recent signal of 750 GeV diphotons at the LHC can be explained within the framework of supersymmetric unification by the introduction of vector quarks and leptons with Yukawa couplings to a singlet S that describes the 750 GeV resonance. We study the most general set of theories that allow successful gauge coupling unification, and find that these Yukawa couplings are severely constrained by renormalization group behavior: they are independent of ultraviolet physics and flow to values at the TeV scale that we calculate precisely. As a consequence the vector quarks and leptons must be light; typically in the region of 375 GeV to 700 GeV, and in certain cases up to 1 TeV. The 750 GeV resonance may have a width less than the experimental resolution; alternatively, with the mass splitting between scalar and pseudoscalar components of S arising from one-loop diagrams involving vector fermions, we compute an apparent width of 10s of GeV.},
doi = {10.1007/JHEP03(2016)017},
journal = {Journal of High Energy Physics (Online)},
number = 3,
volume = 2016,
place = {United States},
year = {2016},
month = {3}
}

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Works referenced in this record:

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