Accès ouvert
2025
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, F. Abudinén et autres
A bstract The production ratio of ψ (2 S ) to J/ψ charmonium states is presented as a function of multiplicity in proton-lead collisions at a centre-of-mass energy of $$ \sqrt{s_{\textrm{NN}}}=8.16 $$ s NN = 8.16 TeV, for both prompt and nonprompt …
nl, gb, ch, us, es, se, fr, it, de, br, cn, cz, pl, 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
The Λ b 0 → Λ c + D s − K + K − decay is observed for the first time using the data sample from proton-proton collisions recorded at a center-of-mass energy of 13 TeV with the LHCb detector, corresponding …
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, F. Abudinén et autres
A sample of p p collision data, corresponding to an integrated luminosity of 5.4 fb − 1 and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the Ξ b 0 baryon …
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, C. Abellan Beteta, F. Abudinén et autres
A study is presented of B + → K S 0 K − π + K + and B + → K S 0 K + π − K + decays based on the analysis of proton-proton collision data collected with the …
nl, gb, ch, us, es, se, fr, it, de, br, cn, pl
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, F. Abudinén et autres
The branching fraction of the decay B+→ψ(2S)ϕ(1020)K+ , relative to the topologically similar decay B+→J/ψϕ(1020)K+ , is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of …
nl, gb, ch, us, es, se, fr, it, de, br, cn, 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 search for CP violation in $$ {D}^0\to {K}_S^0{K}^{+}{\pi}^{-} $$ D 0 → K S 0 K + π − and $$ {D}^0\to {K}_S^0{K}^{-}{\pi}^{+} $$ D 0 → K S 0 K − π + decays is reported. The search …
nl, gb, ch, es, se, fr, us, it, de, br, cn, cr, pl
(code pays fourni par la source)
Accès ouvert
2023
erratum
OpenAlex
Mikhail N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht et autres
A search for the hadronic decays of the h c meson to the final states pp + - 0 , pp, and pp 0 via the process (3686) 0 h c is performed using (4.48 0.03) 10 8 (3686) events collected with …
cn, ru, se, de, it, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
The first study of the angular distribution of ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ pairs produced in the forward rapidity region via the Drell-Yan reaction $pp\ensuremath{\rightarrow}{\ensuremath{\gamma}}^{*}/Z+X\ensuremath{\rightarrow}{\ensuremath{\ell}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}+X$ is presented, using data collected with the LHCb detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity …
nl, gb, ch, es, fr, us, it, de, ru, br, cn, pl
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
The first full angular analysis and an updated measurement of the decay-rate $CP$ asymmetry of the ${D}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ and ${D}^{0}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. …
nl, gb, ch, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
The first observation of the semileptonic $b$-baryon decay ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Lambda}}}_{c}^{+}{\ensuremath{\tau}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\tau}}$, with a significance of $6.1\ensuremath{\sigma}$, is reported using a data sample corresponding to $3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of integrated luminosity, collected by the LHCb experiment at center-of-mass energies of 7 and 8 TeV at …
nl, gb, ch, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
The photon polarization in $b\ensuremath{\rightarrow}s\ensuremath{\gamma}$ transitions is measured for the first time in radiative $b$ -baryon decays exploiting the unique spin structure of ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}\ensuremath{\rightarrow}\mathrm{\ensuremath{\Lambda}}\ensuremath{\gamma}$ decays. A data sample corresponding to an integrated luminosity of $6\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected by the LHCb experiment …
fr
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, T. Ackernley, B. Adeva et autres
The photoproduction of $J/\ensuremath{\psi}\phantom{\rule{1.111pt}{0ex}}$ mesons at low transverse momentum is studied in peripheral lead-lead collisions collected by the LHCb Collaboration at a center-of-mass energy per nucleon pair of $5\phantom{\rule{3.33333pt}{0ex}}\mathrm{TeV}$, corresponding to an integrated luminosity of 210 $\ensuremath{\mu}{\mathrm{b}}^{\ensuremath{-}1}$. The $J/\ensuremath{\psi}\phantom{\rule{1.111pt}{0ex}}$ candidates are reconstructed …
nl, ch, gb, es, fr, us, it, de, ru, br, Zimbabwe, pl, cn
(code pays fourni par la source)