M. Hushchyn

First Observation of C P Violation and Measurement of Polarization in B + → ρ ( 770 ) 0 K * ( 892 ) + Decays

R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, Carlos Abellán Beteta, C. Abellán Beteta et autres

An amplitude analysis of the B^{+}→(π^{+}π^{-})(K_{S}^{0}π^{+}) decay is performed in the mass regions 0.30<m_{π^{+}π^{-}}<1.10 GeV/c^{2} and 0.75<m_{K_{S}^{0}π^{+}}<1.20 GeV/c^{2}, using pp collision data recorded with the LHCb detector corresponding to an integrated luminosity of 9 fb^{-1}. The polarization fractions and CP asymmetries for …

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Observation of B c + → D h + h − Decays

R. Aaij, A. S. W. Abdelmotteleb, Carlos Abellán Beteta, C. Abellán Beteta et autres

Searches are presented for B_{c}^{+}→Dh^{+}h^{-} decays, where D is a charmed meson and h^{±} is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb^{-1}. The decays B_{c}^{+}→D^{+}K^{+}π^{-}, B_{c}^{+}→D^{*+}K^{+}π^{-}, and …

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First Determination of the Spin-Parity of Ξ c ( 3055 ) + , 0 Baryons

R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, Carlos Abellán Beteta, F. Abudinén et autres

The Ξ_{b}^{0(-)}→Ξ_{c}(3055)^{+(0)}(→D^{+(0)}Λ)π^{-} decay chains are observed, and the spin-parity of Ξ_{c}(3055)^{+(0)} baryons is determined for the first time. The measurement is performed using proton-proton collision data at a center-of-mass energy of sqrt[s]=13 TeV, corresponding to an integrated luminosity of 5.4 fb^{-1}, recorded …

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Measurement of the CKM angle γ in B± → DK*(892)± decays

R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres

A bstract Measurements of CP observables and the CKM angle γ are performed in B ± → DK * (892) ± decays, where D represents a superposition of D 0 and $$ {\overline{D}}^0 $$ D ¯ 0 states, using the LHCb dataset …

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Evidence for B − → D * * 0 τ − ν τ ¯ Decays

R. Aaij, A. S. W. Abdelmotteleb, C. A. Aidala, S. Blusk et autres

Study of the rare decay J/ψ → μ+μ−μ+μ−

R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, Carlos Abellán Beteta, F. Abudinén et autres

A bstract The rare electromagnetic J/ψ → μ + μ − μ + μ − decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the LHCb experiment during 2016–2018 at a center-of-mass energy of …

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Search for CP violation in the phase space of $$ {D}^0\to {K}_S^0{K}^{\pm }{\pi}^{\mp } $$ decays with the energy test

R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres

A bstract A search for CP violation in $$ {D}^0\to {K}_S^0{K}^{+}{\pi}^{-} $$ D 0 → K S 0 K + π − and $$ {D}^0\to {K}_S^0{K}^{-}{\pi}^{+} $$ D 0 → K S 0 K − π + decays is reported. The search …

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Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons

R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres

Abstract The CP asymmetries of seven B− decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D*0 or $$ {D}_s^{\ast -} $$ D …

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Search for CP violation in the phase space of D0 → π−π+π0 decays with the energy test

R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres

Abstract A search for CP violation in D0 → π−π+π0 decays is reported, using pp collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated luminosity of 6 fb−1. An unbinned model-independent approach provides sensitivity to local …

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Addendum: Test of lepton universality in beauty-quark decays

R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva et autres

In a new analysis since the publication of the original article, the LHCb collaboration performs a simultaneous test of muon-electron universality using \({B}^{+}\to {K}^{+}{{\mathscr{l}}}^{-}{{\mathscr{l}}}^{+}\) and \({B}^{0}\to {K}^{* 0}{{\mathscr{l}}}^{-}{{\mathscr{l}}}^{+}\) ( \({\mathscr{l}}=e,\mu\) ) decays with data collected between 2011 and 2018, corresponding to an …

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Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays

R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres

A bstract A study of B + → J / ψηK + decays, followed by J / ψ → μ + μ − and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass …

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Searches for rare $$ {B}_s^0 $$ and B0 decays into four muons

R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén et autres

Abstract Searches for rare $$ {B}_s^0 $$ B s 0 and B0 decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. Direct decays and decays via light scalar …

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