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Title: Symmetry restored in dibosons at the LHC?

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.
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:
OSTI Identifier:
1228037
Report Number(s):
SLAC-PUB-16319
Journal ID: ISSN 1029-8479; PII: 2403
Grant/Contract Number:
AC02-76SF00515
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
Research Org:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Beyond Standard Model; Cosmology of Theories beyond the SM