Title
Exclusive γγ → <sup>+</sup>μμ <sup>-</sup> production in proton-proton collisions at √s = 7 TeV
Date Issued
27 February 2012
Access level
open access
Resource Type
research article
Author(s)
Chatrchyan S.
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Bergauer T.
Dragicevic M.
Erö J.
Fabjan C.
Friedl M.
Fruḧwirth R.
Ghete V.M.
Hammer J.
Hänsel S.
Hoch M.
Hörmann N.
Hrubec J.
Jeitler M.
Kiesenhofer W.
Krammer M.
Liko D.
Mikulec I.
Pernicka M.
Rahbaran B.
Rohringer H.
Schöfbeck R.
Strauss J.
Taurok A.
Teischinger F.
Trauner C.
Wagner P.
Waltenberger W.
Walzel G.
Widl E.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez J.
Bansal S.
Benucci L.
De Wolf E.A.
Janssen X.
Luyckx S.
Maes T.
Mucibello L.
Ochesanu S.
Roland B.
Rougny R.
Selvaggi M.
Van Haevermaet H.
Van Mechelen P.
Van Remortel N.
Blekman F.
Blyweert S.
D'Hondt J.
Gonzalez Suarez R.
Kalogeropoulos A.
Maes M.
Olbrechts A.
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.
Léonard A.
Marage P.E.
Thomas L.
Vander Velde C.
Vanlaer P.
Wickens J.
Adler V.
Beernaert K.
Cimmino A.
Costantini S.
Grunewald M.
Klein B.
Lellouch J.
Marinov A.
McCartin J.
Ryckbosch D.
Strobbe N.
Thyssen F.
Tytgat M.
Vanelderen L.
Verwilligen P.
Walsh S.
Zaganidis N.
Basegmez S.
Bruno G.
Caudron J.
Ceard L.
Cortina Gil E.
De Favereau De Jeneret J.
Delaere C.
Abstract
A measurement of the exclusive two-photon production of muon pairs in proton-proton collisions at √s = 7TeV, pp → pμ +μ -p, is reported using data corresponding to an integrated luminosity of 40 pb -1. For muon pairs with invariant mass greater than 11:5 GeV, transverse momentum p (μ) > 4 GeV and pseudorapidity σ(μ) < 2:1, a t to the dimuon pT(μ +μ -) distribution results in a measured cross section of η(p → pμ +μ -p) = 3:38 +0:580:55 (stat:)±0:16 (syst:)±0:14 (lumi:) pb, consistent with the theoretical prediction evaluated with the event generator Lpair. The ratio to the predicted cross section is 0:83 +0:14 - 0:13 (stat:) ± 0:04 (syst:) ± 0:03 (lumi:). The characteristic distributions of the muon pairs produced via fusion, such as the muon acoplanarity, the muon pair invariant mass and transverse momentum agree with those from the theory. Copyright © CERN.
Volume
2012
Issue
1
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Subjects
Scopus EID
2-s2.0-84863163078
Source
Journal of High Energy Physics
ISSN of the container
11266708
Sponsor(s)
Science and Technology Facilities Council
Sources of information:
Directorio de Producción Científica
Scopus