title: Same-sign diboson signature from supersymmetry models with light Higgsinos at the LHC.
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 W2(±)Z4→(W(±)Z1,2)+(W(±)W1(∓)) also occurs at substantial rates and leads to final states including equally opposite-sign and same-sign diboson production. We propose a novel search channel for LHC14 based on the same-sign diboson plus missing ET 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.
authors.affiliation: Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019, USA.
authors.forename: Howard
authors.initials: H
authors.lastname: Baer
authors.affiliation: Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA.
authors.forename: Vernon
authors.initials: V
authors.lastname: Barger
authors.affiliation: Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA.
authors.forename: Peisi
authors.initials: P
authors.lastname: Huang
authors.affiliation: Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019, USA.
authors.forename: Dan
authors.initials: D
authors.lastname: Mickelson
authors.affiliation: Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
authors.forename: Azar
authors.initials: A
authors.lastname: Mustafayev
authors.affiliation: School of Physics, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
authors.forename: Warintorn
authors.initials: W
authors.lastname: Sreethawong
authors.affiliation: Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA.
authors.forename: Xerxes
authors.initials: X
authors.lastname: Tata