Measurement of D±s production asymmetry in pp collisions at s√=7 and 8 TeVстатья
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Дата последнего поиска статьи во внешних источниках: 20 ноября 2020 г.
Аннотация: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.