Title
Inclusive search for squarks and gluinos in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeVInclusive search for squarks and gluinos in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Elementary Particle Physics
Publication type
article
Publication
Lancaster, Pa,
Subject
Physics
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Volume/pages
85(2012):1, p. 1-23
ISSN
0556-2821
Article Reference
012004
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A search is performed for heavy particle pairs produced in root s = 7 TeV proton-proton collisions with 35 pb(-1) of data collected by the CMS experiment at the LHC. The search is sensitive to squarks and gluinos of generic supersymmetry models, provided they are kinematically accessible, with minimal assumptions on properties of the lightest superpartner particle. The kinematic consistency of the selected events is tested against the hypothesis of heavy particle pair production using the dimensionless razor variable R, related to the missing transverse energy E(T)(miss). The new physics signal is characterized by a broad peak in the distribution of M(R), an event-by-event indicator of the heavy particle mass scale. This new approach is complementary to E(T)(miss)-based searches. After background modeling based on data, and background rejection based on R and M(R), no significant excess of events is found beyond the standard model expectations. The results are interpreted in the context of the constrained minimal supersymmetric standard model as well as two simplified supersymmetry models.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/d04d36/1252.pdf
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