Title
Upsilon production cross section in pp collisions at √s=7TeV
Date Issued
15 June 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.
Waltenberger W.
Walzel G.
Widl E.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Benucci L.
Ceard 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.
Adler V.
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.
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.
De Favereau De Jeneret J.
Delaere C.
Demin P.
Favart D.
Giammanco A.
Grégoire G.
Hollar J.
Lemaitre V.
Abstract
The Υ(1S), Υ(2S), and Υ(3S) production cross sections in proton-proton collisions at √s=7TeV are measured using a data sample collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 3.1±0.3pb -1. Integrated over the rapidity range |y|<2, we find the product of the Υ(1S) production cross section and branching fraction to dimuons to be σ(pp→Υ(1S)X) •B(Υ(1S)→μ +μ -)=7.37±0.13-0. 42+0.61±0.81nb, where the first uncertainty is statistical, the second is systematic, and the third is associated with the estimation of the integrated luminosity of the data sample. This cross section is obtained assuming unpolarized Υ(1S) production. With the assumption of fully transverse or fully longitudinal production polarization, the measured cross section changes by about 20%. We also report the measurement of the Υ(1S), Υ(2S), and Υ(3S) differential cross sections as a function of transverse momentum and rapidity. © 2011 American Physical Society.
Volume
83
Issue
11
Language
English
OCDE Knowledge area
Física y Astronomía
Ciencias naturales
Scopus EID
2-s2.0-79960807447
Source
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN of the container
15502368
Sponsor(s)
National Science Foundation, NSF
Science and Technology, Facilities Council ST/F006748/1, ST/F007094/1, ST/G502347/1, ST/I000410/1, ST/I002200/1, ST/I005912/1, ST/I505572/1, STFC
Science and Technology Facilities Council, STFC
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, 134939, SNF
Sources of information:
Directorio de Producción Científica
Scopus