Accès ouvert
2024
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
A study of prompt Ξc+ production in proton-lead collisions is performed with the LHCb experiment at a center-of-mass energy per nucleon pair of 8.16 TeV in 2016 in pPb and Pbp collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 …
nl, gb, ch, es, se, fr, us, it, de, br, cn, pl
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Accès ouvert
2023
article
OpenAlex
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres
Abstract The first observation of the $$ {B}_s^0 $$ B s 0 → D∗+D∗− decay and the measurement of its branching ratio relative to the B0→ D∗+D∗− decay are presented. The data sample used corresponds to an integrated luminosity of 9 fb−1 …
nl, gb, ch, es, se, fr, us, it, de, br, cn, pl
(code pays fourni par la source)
Accès ouvert
2023
article
OpenAlex
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres
Abstract The first observation of the $$ {\Lambda}_b^0\to {D}_s^{-}p $$ Λ b 0 → D s − p decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of $$ \sqrt{s} $$ s = 13 TeV, …
nl, gb, ch, es, se, fr, us, it, de, 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
Abstract A precision measurement of theZboson production cross-section at $$ \sqrt{\mathrm{s}} $$ s = 13 TeV in the forward region is presented, usingppcollision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.1 fb−1. The production cross-section is measured …
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Accès ouvert
2022
article
OpenAlex
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, C. Abellán Beteta, F. J. Abudinen Gallego et autres
Abstract A data sample collected with the LHCb detector corresponding to an integrated luminosity of 9 fb−1 is used to measure eleven CP violation observables in B±→ Dh± decays, where h is either a kaon or a pion. The neutral D meson …
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. J. Abudinen Gallego et autres
Abstract Conventional, hadronic matter consists of baryons and mesons made of three quarks and a quark–antiquark pair, respectively 1,2 . Here, we report the observation of a hadronic state containing four quarks in the Large Hadron Collider beauty experiment. This so-called tetraquark …
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. J. Abudinen Gallego et autres
Abstract Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative …
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, Carlos Abellán Beteta, F. Abudinén et autres
A bstract The $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$ Ξ cc + + → Ξ c ′ + π + decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity …
ch, nl, gb, 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, T. Ackernley et autres
Two narrow resonant states are observed in the ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of $6\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. The minimal …
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 observations of ${B}^{0}\ensuremath{\rightarrow}{\overline{D}}^{*}(2007{)}^{0}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and ${B}_{s}^{0}\ensuremath{\rightarrow}{\overline{D}}^{*}(2007{)}^{0}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ decays are presented, and their branching fractions relative to that of the ${B}^{0}\ensuremath{\rightarrow}{\overline{D}}^{*}(2007{)}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to determine the …
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. J. Abudinen Gallego et autres
Abstract A search is performed for massive long-lived particles (LLPs) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200 $$\text {\,GeV\!/}c^2$$ \,GeV\!/ c …
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, Carlos Abellán Beteta, F. Abudinén et autres
Abstract The multihadron decays $$ {\Lambda}_b^0 $$ Λb0 →D+pπ−π−and $$ {\Lambda}_b^0 $$ Λb0 →D*+pπ−π−are observed in data corresponding to an integrated luminosity of 3 fb−1, collected in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV by the LHCb detector. Using …
nl, ch, gb, es, fr, us, it, de, ru, br, cn, pl
(code pays fourni par la source)