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Measurement of $D{_s}{^\pm}$ production asymmetry in pp collisions at $\sqrt s$ = 7 and 8 TeV

LHCb Collaboration; Bernet, R; Müller, K; Serra, N; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2018). Measurement of $D{_s}{^\pm}$ production asymmetry in pp collisions at $\sqrt s$ = 7 and 8 TeV. Journal of High Energy Physics, 08:008.

Abstract

The inclusive D s ± production asymmetry is measured in pp collisions collected by the LHCb experiment at centre-of-mass energies of 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, pT, and rapidity, y, covering the range 2.5 < pT < 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.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:2018
Deposited On:06 Mar 2019 16:18
Last Modified:25 May 2025 03:36
Publisher:Springer
ISSN:1029-8479
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP08(2018)008
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