Speaker
Fabio Ferrari
(BO)
Description
The $B^0$, $B^0_s$, $B^+$ and $\Lambda^0_b$ hadron production asymmetries are measured using a data sample corresponding to an integrated luminosity of 3.0$fb^{-1}$, collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The $B^0$, $B^0_s$ and $B^+$ production asymmetries are measured by means of $B^0 \to J/\psi(\mu^+ \mu^-) K^{*0}(K^- \pi^+)$, $B^0_s \to D^{-}_{s}(K^+ K^- \pi^-) \pi^+$ and $B^+ \to J/\psi(\mu^+ \mu^-) K^+$ decays. Then, exploiting a unitarity relation, the $\Lambda^0_b$ production asymmetry is determined. The measurements are performed as a function of transverse momentum and rapidity of the $b$ hadrons within the LHCb detector acceptance. The overall production asymmetries, integrated over transverse momentum and rapidity, are also determined.
Primary author
Fabio Ferrari
(BO)
