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R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
A sample of pp collision data, corresponding to an integrated luminosity of 5.4 fb−1 and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the Ξb0 baryon to that of the Λb0 …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
The Λb0 → Λc+Ds−K+K− decay is observed for the first time using the data sample from proton-proton collisions recorded at a center-of-mass energy of 13 TeV with the LHCb detector, corresponding to an integrated luminosity of 6 fb−1. The ratio of branching …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
An angular analysis of B0 → K∗0e+e− decays is presented using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The analysis is performed in the …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
This paper presents the first measurement of ψ(2S) and χc1(3872) meson production within fully reconstructed jets. Each quarkonium state (tag) is reconstructed via its decay to the J/ψ(→μ+μ−)π+π− final state in the forward region using proton-proton collision data collected by the LHCb …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
We report a dedicated study of the newly discovered extended UHE γ-ray source 1LHAASO J0056+6346u. Analyzing 979 d of LHAASO-WCDA data and 1389 d of LHAASO-KM2A data, we observed a significant excess of γ-ray events with both WCDA and KM2A. Assuming a …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
An amplitude analysis of the Ds1(2460)+→Ds+π+π- transition is performed simultaneously in B0→D-Ds+π+π-, B+→D0Ds+π+π-, and B0→D*-Ds+π+π- decays. The study is based on a data sample of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of s=7,8, and 13 TeV, corresponding to …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
A study is presented of B+ →KS0K−π+K+ and B+ →KS0K+π−K+ decays based on the analysis of proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
The branching fraction of the decay B+ →ψ(2S)Φ(1020)K+, relative to the topologically similar decay B+ →J/ψΦ(1020)K+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
The first measurement of the CP asymmetry of the decay rate (ACP) and the CP average (ΣAFB) and CP asymmetry (ΔAFB) of the forward-backward asymmetry in the muon system of Λc+ →pμ+μ− decays is reported. The measurement is performed using a data …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
The first test of lepton flavor universality between muons and electrons using B+→K+π+π−l+l− (l =e, μ) decays is presented. The measurement is performed with data from proton-proton collisions collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
A search for CP violation in Λb0 →pK− and Λb0 →pπ− decays is presented using the full Run 1 and Run 2 data samples of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 fb−1 at center-of-mass …
R Aaij, A. Abdelmotteleb, C. Abellan Beteta, F Abudinén et autres
A search for D0 meson decays to the π+π−e+e− and K+K−e+e− final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb−1. The …
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