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Title: 750 GeV diphotons: implications for supersymmetric unification II

Abstract

Perturbative supersymmetric gauge coupling unification is possible in six theories where complete SU (5) TeV-scale multiplets of vector matter account for the size of the reported 750 GeV diphoton resonance, interpreted as a singlet multiplet S=(s+ia)/√2. One of these has a full generation of vector matter and a unified gauge coupling αG ~ 1. The diphoton signal rate is enhanced by loops of vector squarks and sleptons, especially when the trilinear A couplings are large. If the SH uH d coupling is absent, both s and a can contribute to the resonance, which may then have a large apparent width if the mass splitting from s and a arises from loops of vector matter. The width depends sensitively on A parameters and phases of the vector squark and slepton masses. Vector quarks and/or squarks are expected to be in reach of the LHC. If the SH uH d coupling is present, a leads to a narrow diphoton resonance, while a second resonance with decays s → hh, W +W , ZZ is likely to be discovered at future LHC runs. In some of the theories a non-standard origin or running of the soft parameters is required, for example involvingmore » conformal hidden sector interactions.« less

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:
1412518
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Volume: 2016; Journal Issue: 7; 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 Model; Supersymmetric Standard Model

Citation Formats

Hall, Lawrence J., Harigaya, Keisuke, and Nomura, Yasunori. 750 GeV diphotons: implications for supersymmetric unification II. United States: N. p., 2016. Web. doi:10.1007/JHEP07(2016)149.
Hall, Lawrence J., Harigaya, Keisuke, & Nomura, Yasunori. 750 GeV diphotons: implications for supersymmetric unification II. United States. doi:10.1007/JHEP07(2016)149.
Hall, Lawrence J., Harigaya, Keisuke, and Nomura, Yasunori. Fri . "750 GeV diphotons: implications for supersymmetric unification II". United States. doi:10.1007/JHEP07(2016)149. https://www.osti.gov/servlets/purl/1412518.
@article{osti_1412518,
title = {750 GeV diphotons: implications for supersymmetric unification II},
author = {Hall, Lawrence J. and Harigaya, Keisuke and Nomura, Yasunori},
abstractNote = {Perturbative supersymmetric gauge coupling unification is possible in six theories where complete SU (5) TeV-scale multiplets of vector matter account for the size of the reported 750 GeV diphoton resonance, interpreted as a singlet multiplet S=(s+ia)/√2. One of these has a full generation of vector matter and a unified gauge coupling αG ~ 1. The diphoton signal rate is enhanced by loops of vector squarks and sleptons, especially when the trilinear A couplings are large. If the SHuHd coupling is absent, both s and a can contribute to the resonance, which may then have a large apparent width if the mass splitting from s and a arises from loops of vector matter. The width depends sensitively on A parameters and phases of the vector squark and slepton masses. Vector quarks and/or squarks are expected to be in reach of the LHC. If the SHuHd coupling is present, a leads to a narrow diphoton resonance, while a second resonance with decays s → hh, W+W– , ZZ is likely to be discovered at future LHC runs. In some of the theories a non-standard origin or running of the soft parameters is required, for example involving conformal hidden sector interactions.},
doi = {10.1007/JHEP07(2016)149},
journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 7,
volume = 2016,
place = {United States},
year = {2016},
month = {7}
}

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