Search for Stopped Gluinos in pp collisions at sqrt s = 7 TeV
(2011) Physical Review Letters — Vol. 106, n° 1, p. 011801 [15 pages] (2011)
Files
document.pdf
Open Access - Adobe PDF
- 391.4 KB
Details
- Authors
- Abstract
- The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 10^{32} cm^{-2} s^{-1}, an integrated luminosity of 10 inverse picobarns, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference between the gluino and the neutralino greater than 100 GeV/c^2, and assuming a branching ratio for gluino to gluon+neutralino of 100%, gluinos of mass less than 370 GeV/c^2 are excluded for lifetimes from 10 microseconds to 1000 s.
- Affiliations
- Yerevan Phys. Inst.
Citations
CMS Collaboration, Quertenmont, L., Khachatryan, V., Basegmez, S., Bruno, G., Caudron, J., Ceard, L., Cortina Gil, E., de Favereau de Jeneret, J., Delaere, C., Favart, D., Forthomme, L., Giammanco, A., Grégoire, G., Hollar, J., Lemaitre, V., Liao, J., Militaru, O., Nuttens, C., et al. (2011). Search for Stopped Gluinos in pp collisions at sqrt s = 7 TeV. Physical Review Letters, 106(1), 011801 [15 pages]. https://doi.org/10.1103/PhysRevLett.106.011801 (Original work published 2011)