Measurement of D ±s production asymmetry in pp collisions at √s=7 and 8 TeV

Thumbnail Image

Files

2018_ jhighenergphys_lhcbcollab_measurement.pdf (1.67 MB)
Identifiers
URI: http://hdl.handle.net/10347/22217
ISSN: 1029-8479
DOI: 10.1007/JHEP08(2018)008

Publication date

2018

Authors

Advisors

Tutors

Editors

Journal Title

Journal ISSN

Volume Title

Publisher

Springer
Metrics
Google Scholar
lacobus
Export

Research Projects

Organizational Units

Journal Issue

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.

Description

Keywords

Charm physics| Forward physics| Hadron-Hadron scattering (experiments)| Heavy quark production| QCD

Bibliographic citation

Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of D ±s production asymmetry in pp collisions at √s=7 and 8 TeV. J. High Energ. Phys. 2018, 8 (2018). https://doi.org/10.1007/JHEP08(2018)008

Relation

Has part

Has version

Is based on

Is part of

Is referenced by

Is version of

Requires

Sponsors

Rights

© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Collections

Física de Partículas
Instituto Galego de Física de Altas Enerxías (IGFAE)