Measurement of D s ± production asymmetry in pp collisions at s = 7 √s=7 and 8 TeV
Name
Aaij2018_Article_MeasurementOfDsProductionAsymm.pdf
Description
Published version
Size
1.67 MB
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Unknown
Checksum (MD5)
980d95360dbedc7cc281abde1f36dffe
Author(s)
The LHCb Collaboration
Boettcher, Thomas Julian
Craik, Daniel C
Weisser, Constantin
Williams, Michael
Date Issued
2018
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Version
Final published version
Abstract
Abstract
The inclusive D s ± production asymmetry is measured in pp collisions collected by the LHCb experiment at centre-of-mass energies of $$ \sqrt{s}=7 $$ s = 7 and 8 TeV. Promptly produced D s ± mesons are used, which decay as D s ± → ϕπ±, with ϕ → K + K −. The measurement is performed in bins of transverse momentum, p T, and rapidity, y, covering the range 2.5 < p T < 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero D s ± production asymmetry is found with a significance of 3.3 standard deviations.
The inclusive D s ± production asymmetry is measured in pp collisions collected by the LHCb experiment at centre-of-mass energies of $$ \sqrt{s}=7 $$ s = 7 and 8 TeV. Promptly produced D s ± mesons are used, which decay as D s ± → ϕπ±, with ϕ → K + K −. The measurement is performed in bins of transverse momentum, p T, and rapidity, y, covering the range 2.5 < p T < 25.0 GeV/c and 2.0 < y < 4.5. No kinematic dependence is observed. Evidence of nonzero D s ± production asymmetry is found with a significance of 3.3 standard deviations.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1007/JHEP08(2018)008
