Exclusive J /ψ and ψ(2 S ) production in pp collisions at √s = 7 TeV
Name
Aaij_2013_J._Phys._G _Nucl._Part._Phys._40_045001.pdf
Description
Published version
Size
777.11 KB
Format
Unknown
Checksum (MD5)
596c9d402cee1965a672e3ef55c69ec4
Author(s)
Williams, Michael
Date Issued
2013
Journal
Journal of Physics G: Nuclear and Particle Physics
Publisher
IOP Publishing
Citation
Aaij, R., et al. "Exclusive J/Psi and Psi(2s) Production in Pp Collisions at Root S=7 Tev." Journal of Physics G-Nuclear and Particle Physics 40 4 (2013): 17.
Version
Final published version
Abstract
Exclusive J/ψ and ψ(2S) vector meson production has been observed in the dimuon channel using the LHCb detector. The cross-section times branching fractions to two muons with pseudorapidities between 2.0 and 4.5 are measured to be σpp→J/ψ(→μ+ μ -)(2.0 < ημ± < 4.5) = 307 ±21 ±36 pb σpp→ψ (2S)( →μ+ μ -))(2.0 < ημ± < 4.5) = 7.8 ±1.3 ±1.0 pb where the first uncertainties are statistical and the second are systematic. The measurements are found to be in good agreement with results from previous experiments and theoretical predictions. The J/ψ photoproduction cross-section has been measured as a function of the photon-proton centre-of-mass energy. The results are consistent with measurements obtained at HERA and confirm a similar power law behaviour for the photoproduction cross-section. © CERN 2013 On behalf of the LHCb Collaboration.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/0954-3899/40/4/045001
