Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at √s=7 TeV
View/ Open
Full record
Show full item recordAuthor
Khachatryan, Vladimir; Brochero Cifuentes, Javier Andrés; Cabrillo Bartolomé, José Ibán; Calderón Tazón, Alicia; Chamizo Llatas, María; Chuang, Shan Huei; Duarte Campderrós, Jordi; Felcini, Marta; Fernández García, Marcos; Gómez Gramuglio, Gervasio; González Sánchez, Francisco Javier; Jordá Lope, Clara; Lobelle Pardo, Patricia; López Virto, María Amparo; Marco de Lucas, Jesús; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco; Muñoz Sánchez, Francisca Javiela; [et al.]Date
2011-05-18Abstract
Dijet angular distributions are measured over a wide range of dijet invariant masses in pp collisions at √s=7 TeV, at the CERN LHC. The event sample, recorded with the CMS detector, corresponds to an integrated luminosity of 36 pb-1. The data are found to be in good agreement with the predictions of perturbative QCD, and yield no evidence of quark compositeness. With a modified frequentist approach, a lower limit on the contact interaction scale for left-handed quarks of Λ+=5.6 TeV (Λ-=6.7 TeV) for destructive (constructive) interference is obtained at the 95% confidence level.
Derechos
Atribución 3.0 España
Publicado en
Physical Review Letters, vol 106, iss. 20, art. num. 201804 (2011)
Publisher
American Physical Society
Enlace a la publicación
Collections to which it belong
- D15 Artículos [218]