Boosting searches for natural supersymmetry with R-parity violation via gluino cascades

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In the presence of even minuscule baryonic R-parity violation (RPV), the stop can be the lightest superpartner and evade LHC searches because it decays into two jets. In order to cover this interesting possibility, we here consider new searches for RPV stops produced in gluino cascades. While typical searches for gluinos decaying to stops rely on same-sign dileptons, the RPV cascades usually have fewer hard leptons, less excess missing energy, and more jets than R-parity conserving cascades. If the gluino is a Dirac fermion, same-sign dilepton signals are also often highly depleted. We therefore explore search strategies that use single-lepton channels, and combat backgrounds using H-T, jet counting, and more detailed multijet kinematics or jet substructure. We demonstrate that the stop mass peaks can be fully reconstructed over a broad range of spectra, even given the very high jet multiplicities. This would not only serve as a "double-discovery'' opportunity, but would also be a spectacular confirmation that the elusive top partner has been hiding in multijets. DOI: 10.1103/PhysRevD.87.075003
Publisher
AMER PHYSICAL SOC
Issue Date
2013-04
Language
English
Article Type
Article
Keywords

MISSING TRANSVERSE ENERGY; ATLAS DETECTOR; ROOT-S=7 TEV; STANDARD MODEL; PP COLLISIONS; FINAL-STATES; BARYOGENESIS; BOSON; JETS; LHC

Citation

PHYSICAL REVIEW D, v.87, no.7

ISSN
1550-7998
DOI
10.1103/PhysRevD.87.075003
URI
http://hdl.handle.net/10203/203722
Appears in Collection
PH-Journal Papers(저널논문)
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