Search for charged massive long-lived particles at s√=1.96 TeV

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Issue Date
2013-03-06Author
Baringer, Philip S.
Bean, Alice
Chen, G.
Clutter, Justace Randall
Sekaric, Jadranka
Wilson, Graham Wallace
Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Alexeev, G. D.
Alimena, J.
Alkhazov, G.
Alton, A.
Askew, A.
Atkins, S.
Augsten, K.
Publisher
American Physical Society
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
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.
Description
This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.052011.
ISSN
0556-2821Collections
Citation
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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