Accès ouvert
2019
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, B. Adeva, M. Adinolfi et autres
Decays of $B_{s}^{0}$ and $\overline{B}{}_{s}^{0}$ mesons into $J/ψπ^+π^-$ final states are studied in a data sample corresponding to 1.9 fb$^{-1}$ of integrated luminosity collected with the LHCb detector in 13 TeV $pp$ collisions. A time-dependent amplitude analysis is used to determine the …
nl, ch, es, gb, fr, us, it, de, ru, br
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres
A measurement of the ratio of branching fractions of the decays B^{+}→K^{+}μ^{+}μ^{-} and B^{+}→K^{+}e^{+}e^{-} is presented. The proton-proton collision data used correspond to an integrated luminosity of 5.0 fb^{-1} recorded with the LHCb experiment at center-of-mass energies of 7, 8, and 13 …
nl, ch, es, gb, us, fr, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, C. A. Aidala et autres
The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of $J/\ensuremath{\psi}$ and ${D}^{0}$ mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon …
nl, es, gb, us, fr, it, de, ch, ru, br, cn, pl
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, C. A. Aidala et autres
We report a measurement of the lifetime of the ${\mathrm{\ensuremath{\Omega}}}_{c}^{0}$ baryon using proton-proton collision data at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of $3.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected by the LHCb experiment. The sample consists of about …
nl, es, gb, us, fr, it, de, ch, ru, br, cn, pl
(code pays fourni par la source)