Search for R-parity Violating Supersymmetry with Displaced Vertices in Proton-Proton Collisions at √s = 8  TeV
Physical Review D 2017
CERN international group of authors, Viesturs Veckalns

Results are reported from a search for R-parity violating supersymmetry in proton-proton collision events collected by the CMS experiment at a center-of-mass energy of s=8 TeV. The data sample corresponds to an integrated luminosity of 17.6 fb-1. This search assumes a minimal flavor violating model in which the lightest supersymmetric particle is a long-lived neutralino or gluino, leading to a signal with jets emanating from displaced vertices. In a sample of events with two displaced vertices, no excess yield above the expectation from standard model processes is observed, and limits are placed on the pair production cross section as a function of mass and lifetime of the neutralino or gluino. At 95% confidence level, the analysis excludes cross sections above approximately 1 fb for neutralinos or gluinos with mass between 400 and 1500 GeV and mean proper decay length between 1 and 30 mm. Gluino masses are excluded below 1 and 1.3 TeV for mean proper decay lengths of 300 μm and 1 mm, respectively, and below 1.4 TeV for the range 2-30 mm. The results are also applicable to other models in which long-lived particles decay into multijet final states.


DOI
10.1103/PhysRevD.95.012009
Hipersaite
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.012009

international group of authors, C., Veckalns, V. Search for R-parity Violating Supersymmetry with Displaced Vertices in Proton-Proton Collisions at √s = 8  TeV. Physical Review D, 2017, Vol.95, No.1, 1.-10.lpp. ISSN 2470-0010. e-ISSN 2470-0029. Pieejams: doi:10.1103/PhysRevD.95.012009

Publikācijas valoda
English (en)
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