Stopping Gluinos

Arvanitaki, A. ; Dimopoulos, S. ; /Stanford U., Phys. Dept. ; Pierce, A. ; /SLAC /Stanford U., Phys. Dept. ; Rajendran, S. ; Wacker, J. ; /Stanford U., Phys. Dept.

Stanford Linear Accelerator Center

关键词: Muons Phenomenology-Hep,Hepph;    Fermilab Tevatron;    43 Particle Accelerators;    Calorimeters;    Ionization;   

DOI  :  10.2172/881144
RP-ID  :  SLAC-PUB-11302
RP-ID  :  AC02-76SF00515
RP-ID  :  881144

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来源: UNT Digital Library

【 摘 要 】

Long lived gluinos are the trademark of split susy. They form R-hadrons that, when charged, efficiently lose energy in matter via ionization. Independent of R-spectroscopy and initial hadronization, a fraction of R-hadrons become charged while traversing a detector. This results in a large number of stopped gluinos at present and future detectors. For a 300 GeV gluino, 10{sup 6} will stop each year in LHC detectors, while several hundred stop in detectors during Run II at the Tevatron. The subsequent decays of stopped gluinos produce distinctive depositions of energy in calorimeters with no activity in either the tracker or the muon chamber.