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Title: Symmetry restored in dibosons at the LHC?

Abstract

A number of LHC resonance search channels display an excess in the invariant mass region of 1.8–2.0 TeV. Among them is a 3.4σ excess in the fully hadronic decay of a pair of Standard Model electroweak gauge bosons, in addition to potential signals in the HW and dijet final states. We perform a model-independent cross-section fit to the results of all ATLAS and CMS searches sensitive to these final states. We then interpret these results in the context of the Left-Right Symmetric Model, based on the extended gauge group SU(2) L × SU(2) R × U(1)', and show that a heavy right-handed gauge boson W R can naturally explain the current measurements with just a single coupling g R ~ 0.4. Thus, we discuss a possible connection to dark matter.

Authors:
 [1];  [2];  [3];  [2];  [4]
  1. Univ. Heidelberg, Heidelberg (Germany)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Johannes Gutenberg Univ., Mainz (Germany)
  4. Institut fur Theoretische Teilchenphysik und Kosmologie, Aachen (Germany)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1228037
Report Number(s):
SLAC-PUB-16319
Journal ID: ISSN 1029-8479; PII: 2403
Grant/Contract Number:  
AC02-76SF00515
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: 2015; Journal Issue: 10; 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; Cosmology of Theories beyond the SM

Citation Formats

Brehmer, Johann, Hewett, JoAnne, Kopp, Joachim, Rizzo, Thomas, and Tattersall, Jamie. Symmetry restored in dibosons at the LHC?. United States: N. p., 2015. Web. doi:10.1007/JHEP10(2015)182.
Brehmer, Johann, Hewett, JoAnne, Kopp, Joachim, Rizzo, Thomas, & Tattersall, Jamie. Symmetry restored in dibosons at the LHC?. United States. doi:10.1007/JHEP10(2015)182.
Brehmer, Johann, Hewett, JoAnne, Kopp, Joachim, Rizzo, Thomas, and Tattersall, Jamie. Wed . "Symmetry restored in dibosons at the LHC?". United States. doi:10.1007/JHEP10(2015)182. https://www.osti.gov/servlets/purl/1228037.
@article{osti_1228037,
title = {Symmetry restored in dibosons at the LHC?},
author = {Brehmer, Johann and Hewett, JoAnne and Kopp, Joachim and Rizzo, Thomas and Tattersall, Jamie},
abstractNote = {A number of LHC resonance search channels display an excess in the invariant mass region of 1.8–2.0 TeV. Among them is a 3.4σ excess in the fully hadronic decay of a pair of Standard Model electroweak gauge bosons, in addition to potential signals in the HW and dijet final states. We perform a model-independent cross-section fit to the results of all ATLAS and CMS searches sensitive to these final states. We then interpret these results in the context of the Left-Right Symmetric Model, based on the extended gauge group SU(2)L × SU(2)R × U(1)', and show that a heavy right-handed gauge boson WR can naturally explain the current measurements with just a single coupling gR ~ 0.4. Thus, we discuss a possible connection to dark matter.},
doi = {10.1007/JHEP10(2015)182},
journal = {Journal of High Energy Physics (Online)},
number = 10,
volume = 2015,
place = {United States},
year = {2015},
month = {10}
}

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