Title
Measurement of dijet angular distributions and search for quark compositeness in pp collisions at √s=7TeV
Date Issued
18 May 2011
Access level
open access
Resource Type
journal article
Author(s)
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Bergauer T.
Dragicevic M.
Erö J.
Fabjan C.
Friedl M.
Frühwirth R.
Ghete V.M.
Hammer J.
Hänsel S.
Hartl C.
Hoch M.
Hörmann N.
Hrubec J.
Jeitler M.
Kasieczka G.
Kiesenhofer W.
Krammer M.
Liko D.
Mikulec I.
Pernicka M.
Rohringer H.
Schöfbeck R.
Strauss J.
Taurok A.
Teischinger F.
Wagner P.
Waltenberger W.
Walzel G.
Widl E.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Benucci L.
Cerny K.
De Wolf E.A.
Janssen X.
Maes T.
Mucibello L.
Ochesanu S.
Roland B.
Rougny R.
Selvaggi M.
Van Haevermaet H.
Van Mechelen P.
Van Remortel N.
Beauceron S.
Blekman F.
Blyweert S.
D'hondt J.
Devroede O.
Gonzalez Suarez R.
Kalogeropoulos A.
Maes J.
Maes M.
Tavernier S.
Van Doninck W.
Van Mulders P.
Van Onsem G.P.
Villella I.
Charaf O.
Clerbaux B.
De Lentdecker G.
Dero V.
Gay A.P.R.
Hammad G.H.
Hreus T.
Marage P.E.
Thomas L.
Vander Velde C.
Vanlaer P.
Wickens J.
Adler V.
Costantini S.
Grunewald M.
Klein B.
Marinov A.
Mccartin J.
Ryckbosch D.
Thyssen F.
Tytgat M.
Vanelderen L.
Verwilligen P.
Walsh S.
Zaganidis N.
Basegmez S.
Bruno G.
Caudron J.
Ceard L.
De Favereau De Jeneret J.
Delaere C.
Demin P.
Favart D.
Giammanco A.
Grégoire G.
Hollar J.
Publisher(s)
American Physical Society
Abstract
Dijet angular distributions are measured over a wide range of dijet invariant masses in pp collisions at √s=7TeV, at the CERN LHC. The event sample, recorded with the CMS detector, corresponds to an integrated luminosity of 36pb-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+=5.6TeV (Λ -=6.7TeV) for destructive (constructive) interference is obtained at the 95% confidence level. © 2011 American Physical Society.
Volume
106
Issue
20
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Física nuclear
Scopus EID
2-s2.0-79959192814
Source
Physical Review Letters
ISSN of the container
00319007
Sponsor(s)
Science and Technology Facilities Council - GRIDPP, ST/F006748/1, ST/F007094/1, ST/G502347/1, ST/H00081X/2, ST/I000410/1, ST/I002200/1, ST/I005912/1, ST/I505572/1.
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung - 123501, 134939.
Sources of information:
Directorio de Producción Científica
Scopus