Tuesday, February 26, 2013

1302.5816 (Howard Baer et al.)

Same sign diboson signature from supersymmetry models with light
higgsinos at the LHC
   [PDF]

Howard Baer, Vernon Barger, Peisi Huang, Dan Mickelson, Azar Mustafayev, Warintorn Sreethawong, Xerxes Tata
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 LHC due to the low visible energy release from their decays. However, the wino pair production reaction \tw_2^\pm\tz_4\to (W^\pm\tz_{1,2})+(W^\pm\tw_1^\mp) also occurs at substantial rates and leads to final states including equally opposite-sign (OS) and same-sign (SS) diboson production. We propose a novel search channel for LHC14 based on the SS 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 SUSY well beyond that from usual gluino pair production.
View original: http://arxiv.org/abs/1302.5816

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