Observation of Z production in proton-lead collisions at LHCb
Name
Aaij-2014-Observation of Z pro.pdf
Size
490.16 KB
Format
Adobe PDF
Checksum (MD5)
267c94095df4563594cbe2ee4088fc3e
Author(s)
Counts, Ian Thomas Hunt
Ilten, Philip J
Williams, Michael
Date Issued
September 2014
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag Berlin Heidelberg
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Observation of Z Production in Proton-Lead Collisions at LHCb.” J. High Energ. Phys. 2014, no. 9 (September 2014).
Version
Final published version
Abstract
The first observation of Z boson production in proton-lead collisions at a centre-of-mass energy per proton-nucleon pair of √sNN = 5 TeV is presented. The data sample corresponds to an integrated luminosity of 1.6 nb[superscript −1] collected with the LHCb detector. The Z candidates are reconstructed from pairs of oppositely charged muons with pseudorapidities between 2.0 and 4.5 and transverse momenta above 20 GeV/c. The invariant dimuon mass is restricted to the range 60 − 120 GeV/c. The Z production cross-section is measured to be
σZ→μ+μ−(fwd)=13.5+5.4−4.0(stat.)±1.2(syst.)nb
in the direction of the proton beam and
σZ→μ+μ−(bwd)=10.7+8.4−5.1(stat.)±1.0(syst.)nb
in the direction of the lead beam, where the first uncertainty is statistical and the second systematic.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/jhep09(2014)030
