Inclusive search for squarks and gluinos in pp collisions at [radical]s = 7 TeV

A search is performed for heavy particle pairs produced in [radical]s = 7 TeV proton-proton collisions with 35 pb super(-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,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical Review D (Particles, Fields, Gravitation and Cosmology) Fields, Gravitation and Cosmology), 2012-01, Vol.85 (1)
1. Verfasser: Chatrchyan, S
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A search is performed for heavy particle pairs produced in [radical]s = 7 TeV proton-proton collisions with 35 pb super(-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 (ProQuest: Formulae and/or non-USASCII text omitted). The new physics signal is characterized by a broad peak in the distribution of M sub(R), an event-by-event indicator of the heavy particle mass scale. This new approach is complementary to (ProQuest: Formulae and/or non-USASCII text omitted)-based searches. After background modeling based on data, and background rejection based on R and M sub(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.
ISSN:1550-7998
1089-4918
DOI:10.1103/PhysRevD.85.012004