Search for charged massive long-lived particles at s√=1.96 TeV
Baringer, Philip S.
Clutter, Justace Randall
Wilson, Graham Wallace
Abazov, V. M.
Acharya, B. S.
Alexeev, G. D.
American Physical Society
Scholarly/refereed, publisher version
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We present a search for charged massive long-lived particles (CMLLPs) that are pair produced in pp-bar collisions at s√=1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. Our result is a combination of two searches where either one or both CMLLPs are reconstructed in the detector. We select events with muonlike particles that have both speed and ionization energy loss (dE/dx) different from muons produced in pp-bar collisions. In the absence of evidence for CMLLPs corresponding to 6.3 fb(−1) of integrated luminosity, we set limits on the CMLLP masses in several supersymmetric models, excluding masses below 278 GeV for long-lived gaugino-like charginos, and masses below 244 GeV for long-lived Higgsino-like charginos at the 95% C.L. We also set limits on the cross section for pair production of long-lived scalar tau leptons that range from 0.04 to 0.008 pb for scalar tau lepton masses of 100–300 GeV.
This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.052011.
V. M. Abazov et al. (D0 Collaboration). (2013). "Search for charged massive long-lived particles at s√=1.96 TeV." Physical Review D, 87(5):052011. http://www.dx.doi.org/10.1103/PhysRevD.87.052011.
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