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, 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, 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
2021
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, F. J. Abudinen Gallego et autres
A study of ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$ baryon decays to the $Dp{K}^{\ensuremath{-}}$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of $9\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected with the LHCb detector. Two ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$ decays are considered, ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}\ensuremath{\rightarrow}Dp{K}^{\ensuremath{-}}$ with $D\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ …
nl, gb, ch, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, T. Ackernley et autres
Abstract A search for the doubly charmed baryon $$ {\varXi}_{cc}^{+} $$ Ξcc+ is performed in the $$ {\varXi}_c^{+}{\pi}^{-}{\pi}^{+} $$ Ξc+π−π+ invariant-mass spectrum, where the $$ {\varXi}_c^{+} $$ Ξc+ baryon is reconstructed in thepK−π+final state. The study uses proton-proton collision data collected with …
nl, gb, ch, es, fr, us, it, de, ru, br, cn, pl
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, T. Ackernley, B. Adeva et autres
A search for time-dependent violation of the charge-parity symmetry in ${D}^{0}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}$ and ${D}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ decays is performed at the LHCb experiment using proton-proton collision data recorded from 2015 to 2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of …
nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2021
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, T. Ackernley, B. Adeva et autres
The ratio of the ${B}_{s}^{0}$ and ${B}^{0}$ fragmentation fractions, ${f}_{s}/{f}_{d}$, in proton-proton collisions at the LHC, is obtained as a function of $B$-meson transverse momentum and collision center-of-mass energy from the combined analysis of different $B$-decay channels measured by the LHCb experiment. …
fr
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva et autres
Abstract The shape of the $$ {B}_s^0\to {D}_s^{\ast -}{\mu}^{+}{\nu}_{\mu } $$ Bs0→Ds∗−μ+νμ differential decay rate is obtained as a function of the hadron recoil parameter using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of …
nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva et autres
A study of the lineshape of the ${\ensuremath{\chi}}_{c1}(3872)$ state is made using a data sample corresponding to an integrated luminosity of $3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the LHCb detector. Candidate ${\ensuremath{\chi}}_{c1}(3872)$ …
nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, T. Ackernley, B. Adeva et autres
A search for $CP$ violation in the ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}\ensuremath{\rightarrow}p{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ decay is performed using LHCb data corresponding to an integrated luminosity of $6.6\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected in $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product …
nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
R. Aaij, Carlos Abellán Beteta, T. Ackernley, B. Adeva et autres
An angular analysis of the B^{0}→K^{*0}(→K^{+}π^{-})μ^{+}μ^{-} decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb^{-1} of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant …
nl, ch, gb, es, fr, us, it, de, ru, br, 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)