# Search for stopped gluinos from $p\bar p$ collisions at $\sqrt{s}$=1.96 TeV

Abstract : Long-lived, colored, heavy particles are predicted in several models beyond the standard model of particle physics, one example being the gluino ($\tilde g$) in split supersymmetry. Some fraction of the hadronized gluinos can become charged and lose enough momentum through ionization to come to rest in dense particle detectors. Approximately 410 pb^-1 of p-pbar collisions at 1.96 TeV collected with the D0 detector during Run II of the Fermilab Tevatron collider are analyzed in search of such stopped gluinos'' decaying into a gluon and a neutralino ($\tilde{\chi}_1^0$), reconstructed as a jet and missing energy. No excess is observed above the expected backgrounds, and limits are placed on the (gluino cross section) $\times$ (probability to stop) $\times$ [BR($\tilde g$\rarrow$g\tilde{\chi}_1^0$)] as a function of the gluino and $\tilde{\chi}_1^0$ masses, for gluino lifetimes from 30 $\mu$s -- 100 hours.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00145282
Contributor : Lpsc Bibliotheque <>
Submitted on : Wednesday, May 9, 2007 - 2:52:46 PM
Last modification on : Thursday, November 19, 2020 - 12:58:49 PM

### Citation

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, et al.. Search for stopped gluinos from $p\bar p$ collisions at $\sqrt{s}$=1.96 TeV. Physical Review Letters, American Physical Society, 2007, 99, pp.131801. ⟨10.1103/PhysRevLett.99.131801⟩. ⟨in2p3-00145282⟩

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