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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
Format
Adobe PDF
Checksum (MD5)
980d95360dbedc7cc281abde1f36dffe
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.
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Creative Commons Attribution 4.0 International license
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DOI of Published Version
10.1007/JHEP08(2018)008
