Accès ouvert
2025
article
OpenAlex
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, Carlos Abellán Beteta, C. Abellán Beteta et autres
An amplitude analysis of the B^{+}→(π^{+}π^{-})(K_{S}^{0}π^{+}) decay is performed in the mass regions 0.30<m_{π^{+}π^{-}}<1.10 GeV/c^{2} and 0.75<m_{K_{S}^{0}π^{+}}<1.20 GeV/c^{2}, using pp collision data recorded with the LHCb detector corresponding to an integrated luminosity of 9 fb^{-1}. The polarization fractions and CP asymmetries for …
nl, gb, ch, us, es, se, fr, it, de, lt, br, cn, pl, ua
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, C. Abellán Beteta et autres
Searches are presented for B_{c}^{+}→Dh^{+}h^{-} decays, where D is a charmed meson and h^{±} is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb^{-1}. The decays B_{c}^{+}→D^{+}K^{+}π^{-}, B_{c}^{+}→D^{*+}K^{+}π^{-}, and …
nl, gb, ch, us, es, se, fr, it, de, lt, br, cn, pl, ua
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
Carlos Abellán Beteta, Thomas Ackernley, A. A. Adefisoye, Christine Angela Aidala et autres
Abstract It is shown that the timing capabilities of the LHCb detector operated during the LHC Run 2 can be used to identify light ion particles with momenta of a few GeV/ c . This is achieved by estimating the particle time …
nl, gb, ch, us, es, se, fr, pl, it, de, lt, br, cn, ua, ca
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, F. Abudinén et autres
A bstract A time-dependent, flavour-tagged measurement of CP violation is performed with B 0 → D + D − and $$ {B}_s^0 $$ B s 0 → $$ {D}_s^{+}{D}_s^{-} $$ D s + D s − decays, using data collected by the …
nl, gb, ch, us, es, se, fr, it, de, br, cn, cz, pl
(code pays fourni par la source)
Accès ouvert
2024
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
A bstract A comprehensive study of the local and nonlocal amplitudes contributing to the decay B 0 → K *0 (→ K + π − ) μ + μ − is performed by analysing the phase-space distribution of the decay products. The …
nl, gb, ch, us, es, se, fr, it, de, br, cn, pl
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, T. Ackernley, B. Adeva et autres
We report the observation of a new structure in the ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ spectrum using the full LHCb data set of $pp$ collisions, corresponding to an integrated luminosity of $9\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected at $\sqrt{s}=7$, 8, and 13 TeV. A study of the structure …
nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, B. Adeva, M. Adinolfi et autres
A time-dependent analysis of the ${B}_{s}^{0}\ensuremath{\rightarrow}\ensuremath{\phi}\ensuremath{\gamma}$ decay rate is performed to determine the $CP$ -violating observables ${S}_{\ensuremath{\phi}\ensuremath{\gamma}}$ and ${C}_{\ensuremath{\phi}\ensuremath{\gamma}}$ and the mixing-induced observable ${\mathcal{A}}_{\ensuremath{\phi}\ensuremath{\gamma}}^{\mathrm{\ensuremath{\Delta}}}$. The measurement is based on a sample of $pp$ collision data recorded with the LHCb detector, corresponding to …
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, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres
The first observation of the decays ${B}_{(s)}^{0}\ensuremath{\rightarrow}J/\ensuremath{\psi}p\overline{p}$ is reported, using proton-proton collision data corresponding to an integrated luminosity of $5.2\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected with the LHCb detector. These decays are suppressed due to limited available phase space, as well as due to …
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, Carlos Abellán Beteta, B. Adeva, M. Adinolfi et autres
A search for charge-parity ($CP$) violation in Cabibbo-suppressed ${D}_{s}^{+}\ensuremath{\rightarrow}{K}_{\mathrm{S}}^{0}{\ensuremath{\pi}}^{+}$, ${D}^{+}\ensuremath{\rightarrow}{K}_{\mathrm{S}}^{0}{K}^{+}$, and ${D}^{+}\ensuremath{\rightarrow}\ensuremath{\phi}{\ensuremath{\pi}}^{+}$ decays is reported using proton-proton collision data, corresponding to an integrated luminosity of $3.8\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected at a center-of-mass energy of 13 TeV with the LHCb detector. High-yield samples …
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. Aidala et autres
A search for CP violation in Λ b 0 → p K − and Λ b 0 → p π − decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of …
nl, es, gb, us, fr, it, de, ch, ru, br, cn
(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni et autres
The ratio of branching fractions RðD Ã-Þ ≡ BðB 0 → D Ã-τ þ ν τ Þ=BðB 0 → D Ã-μ þ ν μ Þ is measured using a data sample of proton-proton collisions collected with the LHCb detector at center-of-mass energies …
ch, es, gb, fr, us, de, nl, ru, br, it, cn, pl
(code pays fourni par la source)