Same-Sign Diboson Signature from Supersymmetry Models with Light Higgsinos at the LHC

Authors

Howard Baer, University of Oklahoma
Vernon Barger, University of Wisconsin-Madison
Peisi Huang, University of Wisconsin-MadisonFollow
Dan Michelson, University of Oklahoma
Azar Mustafayev, University of Hawaii
Warintorn Sreethawong, Suranaree University of Technology
Xerxes Tata, University of HawaiiFollow

Date of this Version

2013

Citation

PRL 110, 151801 (2013)

Comments

Copyright 2013 American Physical Society

DOI: 10.1103/PhysRevLett.110.151801

Abstract

In supersymmetric models with light Higgsinos (which are motivated by electroweak naturalness arguments), the direct production of Higgsino pairs may be difficult to search for at the LHC due to the low visible energy release from their decays. However, the wino pair production reaction [?] -> ([?]) + ([?]) also occurs at substantial rates and leads to final states including equally oppositesign and same-sign diboson production. We propose a novel search channel for LHC14 based on the same-sign diboson plus missing E_T final state which contains only modest jet activity. Assuming gaugino mass unification, and an integrated luminosity [?] 100 fb^-1, this search channel provides a reach for supersymmetry well beyond that from usual gluino pair production.