2012/01/13 by Howard Baer, V. Barger, Vernon Barger +4 · 1 citation
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Chargino #Combinatorics #Gaugino #Gluino #High-Energy Particle Collisions Research #Mathematics #Neutralino #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Supersymmetry #hep-ph
paper · pdf · doi:10.1103/physrevd.85.055022
5 pages with 4 .eps figures
arxiv created 2012/01/13 · openalex publication_date 2012/03/23 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
In SUSY models with heavy squarks and gaugino mass unification, the gaugino pair production reaction pp\ensuremath→\stackrel\texttildelowW1^\ifmmode±\else\textpm\fi\stackrel\texttildelowZ2 dominates gluino pair production for m_\stackrel\texttildelowg\ensuremath\gtrsim1 TeV at LHC with √(s)=14 TeV (LHC14). For this mass range, the two-body decays \stackrel\texttildelowW1\ensuremath→W\stackrel\texttildelowZ1 and \stackrel\texttildelowZ2\ensuremath→h\stackrel\texttildelowZ1 are expected to dominate the chargino and neutralino branching fractions. By searching for \ensuremathℓb\stackrel\texttildelowb+\mathrmE\ensuremath\llap\not T events from \stackrel\texttildelowW1^\ifmmode±\else\textpm\fi\stackrel\texttildelowZ2 production, we show that LHC14 with 100 fb^\ensuremath-1 of integrated luminosity becomes sensitive to chargino masses in the range m_\stackrel\texttildelowW1\ensuremath∼450--550 GeV corresponding to m_\stackrel\texttildelowg\ensuremath∼1.5--2 TeV in models with gaugino mass unification. For 103 fb^\ensuremath-1, LHC14 is sensitive to the Wh channel for m_\stackrel\texttildelowW1\ensuremath∼300--800 GeV, corresponding to m_\stackrel\texttildelowg\ensuremath∼1--2.8 TeV, which is comparable to the reach for gluino pair production followed by cascade decays. The Wh+\mathrmE\ensuremath\llap\not T search channel opens up a new complementary avenue for SUSY searches at LHC, and serves to point to SUSY as the origin of any new physics discovered via multijet and multilepton +\mathrmE\ensuremath\llap\not T channels.