# LHCb Papers

Derniers ajouts:
2022-08-19
09:52
 Study of $B_c^+$ meson decays to charmonia plus multihadron final states Four decay modes of the $B_c^+$ meson into a $J/\psi$~meson and multiple charged kaons or pions are studied using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV and corresponding to an integrated luminosity of $9$fb$^{-1}$.The decay $B_c^+\to J/\psi K^+ K^- \pi^+ \pi^+ \pi^-$ is observed for the first time, and evidence for the $B_c^+\to J/\psi 4\pi^+ 3\pi^-$ decay is found. [...] arXiv:2208.08660 ; CERN-EP-2022-162 ; LHCB-PAPER-2022-025. - 2022. Fulltext - Related data file(s)

2022-08-18
12:13
 Model-independent measurement of charm mixing parameters in $\bar{B} \rightarrow D^0 ( \rightarrow K_S^0 \pi^+ \pi^-) \mu^- \bar{\nu}_\mu X$ A measurement of charm mixing and $CP$-violating parameters is reported, using $\bar{B} \rightarrow D^0 ( \rightarrow K_S^0 \pi^+ \pi^-) \mu^-\bar{\nu}_\mu X$ decays reconstructed in proton-proton collisions collected by the LHCb experiment during the years 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. [...] arXiv:2208.06512 ; CERN-EP-2022-160 ; LHCB-PAPER-2022-020. - 2022. Fulltext - Related data file(s)

2022-08-09
10:27
 Amplitude analysis of the $D^+ \to \pi^-\pi^+\pi^+$ decay and measurement of the $\pi^-\pi^+$ S-wave amplitude An amplitude analysis of the $D^+ \to \pi^- \pi^+ \pi^+$ decay is performed with a sample corresponding to 1.5 $\rm fb^{-1}$ of integrated luminosity of $pp$ collisions at a centre-of-mass energy $\sqrt{s}=8$\tev collected by the LHCb detector in 2012. [...] arXiv:2208.03300 ; LHCb-PAPER-2022-016 ; CERN-EP-2022-136 ; LHCB-PAPER-2022-016. - 2022. Fulltext - Related data file(s) - Supplementary information - Fulltext

2022-08-08
17:12
 Amplitude analysis of the $\Lambda^+_c\to pK^-\pi^+$ decay and $\Lambda^+_c$ baryon polarization measurement in semileptonic beauty hadron decays / Collaboration, Lhcb An amplitude analysis of $\Lambda^+_c \to pK^-\pi^+$ decays together with a measurement of the $\Lambda^+_c$ polarization vector in semileptonic beauty hadron decays is presented. [...] arXiv:2208.03262 ; LHCb-PAPER-2022-002 ; CERN-EP-2022-124 ; LHCB-PAPER-2022-002. - 2022. Fulltext - Related data file(s) - Fulltext - Supplementary information

2022-07-12
16:12
 Search for the lepton-flavour violating decays $B^0 \to K^{*0} \mu^\pm e^\mp$ and $B_s^0 \to \phi \mu^\pm e^\mp$ A search for the lepton-flavour violating decays $B^0 \to K^{*0} \mu^\pm e^\mp$ and $B_s^0 \to \phi \mu^\pm e^\mp$ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$. [...] arXiv:2207.04005 ; LHCb-PAPER-2022-008 ; CERN-EP-2022-097 ; LHCB-PAPER-2022-008. - 2022. - 18 p, 18 p. Fulltext - Related data file(s) - Fulltext

2022-06-17
11:15
 Direct $CP$ violation in charmless three-body decays of $B^{\pm}$ mesons Measurements of $CP$ asymmetries in charmless three-body decays of $B^\pm$ mesons are reported using proton-proton collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.9$\,$fb$^{-1}$. [...] arXiv:2206.07622 ; LHCb-PAPER-2021-049 ; CERN-EP-2022-100 ; LHCB-PAPER-2021-049. - 2022. - 19 p, 19 p. Fulltext - Related data file(s) - Fulltext

2022-06-17
10:17
 Study of coherent charmonium production in ultra-peripheral lead-lead collisions The cross-sections of coherent $J/\psi$ and $\psi(\mathrm{2S})$ production in ultra-peripheral PbPb collisions at a nucleon-nucleon centre-of-mass energy of $5.02\,\mathrm{TeV}$ are measured using a data sample corresponding to an integrated luminosity of $228\pm10\,\mathrm{\mu b}^{-1}$, collected by the LHCb experiment in 2018. [...] arXiv:2206.08221 ; LHCb-PAPER-2022-012 ; CERN-EP-2022-108. - 2022. - 18 p, 18 p. Fulltext - Cover note - Supplementary information

2022-06-15
11:04
 Search for the rare hadronic decay $B_s^0\to p \bar{p}$ A search for the rare hadronic decay $B_s^0\to p \bar{p}$ is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. [...] arXiv:2206.06673 ; LHCb-PAPER-2022-004 ; CERN-EP-2022-102. - 2022. - 14 p. Fulltext - Related data file(s) - Fulltext

2022-06-07
17:28
 Search for direct $CP$ violation in charged charmless $B \to PV$ decays Measurements of $CP$ asymmetry in charmless $B\to PV$ decays are presented, where $P$ and $V$ denote a pseudoscalar and a vector meson, respectively. [...] arXiv:2206.02038 ; LHCb-PAPER-2021-050 ; CERN-EP-2022-101 ; LHCB-PAPER-2021-050. - 2022. - 14 p, 14 p. Full text - Related data file(s) - Fulltext

2022-05-23
08:57
 Measurement of the $Z$ boson production cross-section in proton-lead collisions at $\sqrt{s_\mathrm{NN}}=8.16\,\mathrm{TeV}$ This article presents the first measurement of the differential $Z$-boson production cross-section in the forward region using proton-lead collisions with the LHCb detector. [...] arXiv:2205.10213 ; LHCb-PAPER-2022-009 ; CERN-EP-2022-089. - 2022. - 32 p. Fulltext - Related data file(s) - Supplementary information - Fulltext