The inclusive Ds± 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 Ds± mesons are used, which decay as Ds± → 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 Ds± production asymmetry is found with a significance of 3.3 standard deviations.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albicocco, P., et al. (2018). Measurement of Ds± production asymmetry in pp collisions at √s=7 and 8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2018(8) [10.1007/JHEP08(2018)008].

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

Belloli, N.;Borsato, M.;Calvi, M.;Carniti, P.;Cassina, L.;Fazzini, D.;Gotti, C.;Martinelli, M.;Matteuzzi, C.;Petruzzo, M.;
2018

Abstract

The inclusive Ds± 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 Ds± mesons are used, which decay as Ds± → 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 Ds± production asymmetry is found with a significance of 3.3 standard deviations.
Articolo in rivista - Articolo scientifico
Charm physics; Forward physics; Hadron-Hadron scattering (experiments); Heavy quark production; QCD; Nuclear and High Energy Physics
English
2018
2018
8
8
open
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albicocco, P., et al. (2018). Measurement of Ds± production asymmetry in pp collisions at √s=7 and 8 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2018(8) [10.1007/JHEP08(2018)008].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/215457
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