Exclusive γγ → μ⁺μ⁻ production in proton-proton collisions at √s = 7 TeV
Name
10.1007%2FJHEP01(2012)052.pdf
Size
775.8 KB
Format
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Checksum (MD5)
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Author(s)
CMS Collaboration
Alver, Burak Han
Bauer, Gerry P
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Dutta, Valentina
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Date Issued
January 2012
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Chatrchyan, S. et al. “Exclusive γγ → μ⁺μ⁻ production in proton-proton collisions at √s = 7 TeV.” Journal of High Energy Physics 2012, 1 (January 2012): 52 © SISSA
Version
Final published version
Abstract
A measurement of the exclusive two-photon production of muon pairs in proton-proton collisions at √s = 7 TeV, 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 [superscript + 0:58][subscript - 0:55] (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 [superscript + 0:14][subscript - 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. Keywords: Hardon-Hadron Scattering
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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DOI of Published Version
https://doi.org/10.1007/JHEP01(2012)052
