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
2020
article
OpenAlex
R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva et autres
In an amplitude analysis of the ${B}^{+}\ensuremath{\rightarrow}{D}^{+}\phantom{\rule{0}{0ex}}{D}^{\ensuremath{-}}\phantom{\rule{0}{0ex}}{K}^{+}$ decay, the LHCb Collaboration finds evidence for new spin-0 and spin-1 exotic open-charm and open_strangeness resonances in the ${D}^{\ensuremath{-}}\phantom{\rule{0}{0ex}}{K}^{+}$ channel with masses around 2.9 GeV. These resonances must contain at least four quarks, namely an …
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, B. Adeva, M. Adinolfi et autres
Observations are reported of different sources of CP violation from an amplitude analysis of B^{+}→π^{+}π^{+}π^{-} decays, based on a data sample corresponding to an integrated luminosity of 3 fb^{-1} of pp collisions recorded with the LHCb detector. A large CP asymmetry is …
nl, ch, es, gb, us, fr, it, de, ru, br, pl, cn
(code pays fourni par la source)
Accès ouvert
2016
article
OpenAlex
R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres
The data sample of Λ_{b}^{0}→J/ψpK^{-} decays acquired with the LHCb detector from 7 and 8 TeV pp collisions, corresponding to an integrated luminosity of 3 fb^{-1}, is inspected for the presence of J/ψp or J/ψK^{-} contributions with minimal assumptions about K^{-}p contributions. …
ch, es, gb, fr, de, nl, ru, us, br, it, cn, pl
(code pays fourni par la source)
Accès ouvert
2015
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, A. A. Affolder et autres
An analysis of the decays of ${B}^{\ensuremath{\mp}}\ensuremath{\rightarrow}D{K}^{\ensuremath{\mp}}$ and ${B}^{\ensuremath{\mp}}\ensuremath{\rightarrow}D{\ensuremath{\pi}}^{\ensuremath{\mp}}$ is presented in which the $D$ meson is reconstructed in the three-body final states ${K}^{\ensuremath{\mp}}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{0}$, ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ and ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$. Using data from LHCb corresponding to an integrated luminosity of $3.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of $pp$ …
ch, pl, nl, gb, ru, br, ro, es, us
(code pays fourni par la source)
Accès ouvert
2015
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, A. Affolder et autres
The semileptonic $CP$ asymmetry in ${B}^{0}$-${\overline{B}}^{0}$ mixing, ${a}_{\text{sl}}^{d}$, is measured in proton-proton collision data, corresponding to an integrated luminosity of $3.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, recorded by the LHCb experiment. Semileptonic ${B}^{0}$ decays are reconstructed in the inclusive final states ${D}^{\ensuremath{-}}{\ensuremath{\mu}}^{+}$ and ${D}^{*\ensuremath{-}}{\ensuremath{\mu}}^{+}$, where …
nl, es, gb, fr, de, ch, ru, it, br, cn, us, pl
(code pays fourni par la source)
Accès ouvert
2015
article
OpenAlex
R. Aaij, B. Adeva, M. Adinolfi, A. A. Affolder et autres
Time-dependent CP violation is measured in the B 0 → J / ψ π + π − channel for each π + π − resonant final state using data collected with an integrated luminosity of 3.0 fb −1 in pp collisions using …
nl, es, gb, fr, de, ch, ru, it, br, cn, us
(code pays fourni par la source)