Accès ouvert
2025
article
OpenAlex
R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres
A bstract A measurement of the CP -violating parameters in $$ {B}_s^0\boldsymbol{\to}{D}_s^{\mp }{K}^{\pm} $$ B s 0 → D s ∓ K ± decays is reported, based on the analysis of proton-proton collision data collected by the LHCb experiment corresponding to an …
nl, gb, ch, us, es, se, fr, it, de, br, cn, cz, pl
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Accès ouvert
2025
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres
A bstract An angular analysis of the $$ {B}_s^0 $$ B s 0 → ϕe + e − decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of 9 …
nl, gb, ch, us, es, se, fr, it, de, br, cn, cz, pl
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
A bstract The first full amplitude analysis of B + → ψ (2 S ) K + π + π − decays is performed using proton-proton collision data corresponding to an integrated luminosity of 9 fb −1 recorded with the LHCb detector. …
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
2024
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres
A bstract The production of prompt D + and $$ {D}_s^{+} $$ D s + mesons is studied in proton-lead collisions at a centre-of-mass energy of $$ \sqrt{s_{NN}} $$ s NN = 5 . 02 TeV. The data sample corresponding to an …
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(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, C. Abellán Beteta, T. Ackernley, B. Adeva et autres
Abstract Using proton-proton collision data, collected with the LHCb detector and corresponding to 1.0, 2.0 and 1.9 fb−1of integrated luminosity at the centre-of-mass energies of 7, 8, and 13 TeV, respectively, the decay $$ {\Lambda}_{\mathrm{b}}^0\to {\upchi}_{\mathrm{c}1} $$ Λb0→χc1 (3872)pK−with χc1(3872) → J/ψ …
ch, nl, gb, es, us, it, fr, 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
The production fractions of ${\overline{B}}_{s}^{0}$ and ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$ hadrons, normalized to the sum of ${B}^{\ensuremath{-}}$ and ${\overline{B}}^{0}$ fractions, are measured in 13 TeV $pp$ collisions using data collected by the LHCb experiment, corresponding to an integrated luminosity of $1.67\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. These ratios, …
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 production of ${B}^{+}$, ${B}^{0}$ and ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$ hadrons is studied in proton-lead collisions at a center-of-mass energy per nucleon pair of $\sqrt{{s}_{\mathrm{NN}}}=8.16\text{ }\text{ }\mathrm{TeV}$ recorded with the LHCb detector at the LHC. The measurement uses a dataset corresponding to an integrated luminosity …
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(code pays fourni par la source)
Accès ouvert
2018
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, C. A. Aidala et autres
The first observation of the ${B}_{s}^{0}\ensuremath{\rightarrow}{\overline{D}}^{0}{K}^{+}{K}^{\ensuremath{-}}$ decay is reported, together with the most precise branching fraction measurement of the mode ${B}^{0}\ensuremath{\rightarrow}{\overline{D}}^{0}{K}^{+}{K}^{\ensuremath{-}}$. The results are obtained from an analysis of $pp$ collision data corresponding to an integrated luminosity of $3.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. The …
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
The first observation of the ${B}_{s}^{0}\ensuremath{\rightarrow}{\overline{D}}^{*0}\ensuremath{\phi}$ decay is reported, with a significance of more than seven standard deviations, from an analysis of $pp$ collision data corresponding to an integrated luminosity of $3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected with the LHCb detector at center-of-mass energies …
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
Abstract The $$ {\overline{B}}_s^0\to {\chi}_{c2}{K}^{+}{K}^{-} $$ B¯s0→χc2K+K− decay mode is observed and its branching fraction relative to the correspondingχc1decay mode, in a ±15 MeV/c2window around theϕmass, is found to be $$ \frac{\mathrm{\mathcal{B}}\left({\overline{B}}_s^0\to {\chi}_{c2}{K}^{+}{K}^{-}\right)}{\mathrm{\mathcal{B}}\left({\overline{B}}_s^0\to {\chi}_{c1}{K}^{+}{K}^{-}\right)}=\left(17.1 \pm 3.1\pm 0.4\pm 0.9\right)\%, $$ ℬB¯s0→χc2K+K−ℬB¯s0→χc1K+K−=17.1±3.1±0.4±0.9%, where the …
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