G. Ciezarek

Observation of the ${{{\varLambda } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{K} ^+} }$ and ${{{{\varXi } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{\pi } ^+} }}$ decays

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

The first observation of the $Ξ_b^0 \to J/ψΞ^- π^+$ decay and the most precise measurement of the branching fraction of the $Λ_b^0 \to J/ψΞ^- K^+$ decay are reported, using proton-proton collision data from the LHCb experiment collected in 2016--2018 at a centre-of-mass …

de (code pays fourni par la source)

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 Bose-Einstein correlations of same-sign pions in proton-lead collisions

R. Aaij, Ahmed Sameh Wagih Abdelmotteleb, C. Abellan Beteta, F. Abudinén et autres

Abstract Correlations of same-sign charged pions are analysed using proton-lead collision data collected by the LHCb experiment at a nucleon-nucleon centre-of-mass energy of 5.02 TeV, corresponding to an integrated luminosity of 1.06 nb−1. Bose-Einstein correlations are observed in the form of an …

nl, gb, ch, es, se, fr, us, it, de, br, cn, pl (code pays fourni par la source)

Analysis of Neutral B -Meson Decays into Two Muons

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

Branching fraction and effective lifetime measurements of the rare decay B0s→μ+μ− and searches for the decays B0→μ+μ− and B0s→μ+μ−γ are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a …

nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn (code pays fourni par la source)

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

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

Searches for rare $B_s^0$ and $B^0$ decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 $\text{fb}^{-1}$. Direct decays and decays via light scalar and $J/\psi$ resonances are considered. No …

de (code pays fourni par la source)

Constraints on the K S 0 → μ + μ − Branching Fraction

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

A search for the decay ${K}_{S}^{0}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ is performed using proton-proton collision data, corresponding to an integrated luminosity of $5.6\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ and collected with the LHCb experiment during 2016, 2017, and 2018 at a center-of-mass energy of 13 TeV. The observed signal …

nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn (code pays fourni par la source)

Observation of the semileptonic decay $B^{+}\to p\overline{p}μ^{+}ν_μ$

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

Observation of Two Resonances in the Λb0π± Systems and Precise Measurement of Σb± and Σb*± Properties

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres

The first observation of two structures consistent with resonances in the final states ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}{\ensuremath{\pi}}^{\ensuremath{-}}$ and ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}{\ensuremath{\pi}}^{+}$ is reported using samples of $pp$ collision data collected by the LHCb experiment at $\sqrt{s}=7$ and 8 TeV, corresponding to an integrated luminosity of $3\text{ }\text{ …

nl, ch, es, gb, us, fr, it, de, ru, br, cn, pl (code pays fourni par la source)

Evidence for an $$\eta _c(1S) \pi ^-$$ η c ( 1 S ) π - resonance in $$B^0 \rightarrow \eta _c(1S) K^+\pi ^-$$ B 0 → η c ( 1 S ) K + π - decays

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres

A Dalitz plot analysis of B 0 → η c (1S)K + π - decays is performed using data samples of pp collisions collected with the LHCb detector at centre-of-mass energies of √ s = 7, 8 and 13 TeV, corresponding to …

nl, ch, es, gb, us, fr, it, de, ru, br, cn, Zimbabwe, pl (code pays fourni par la source)

First Observation of the Doubly Charmed Baryon Decay Ξcc++→Ξc+π+

R. Aaij, B. Adeva, M. Adinolfi, C. Aidala et autres

The doubly charmed baryon decay ${\mathrm{\ensuremath{\Xi}}}_{cc}^{++}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Xi}}}_{c}^{+}{\ensuremath{\pi}}^{+}$ is observed for the first time, with a statistical significance of $5.9\ensuremath{\sigma}$, confirming a recent observation of the baryon in the ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{+}$ final state. The data sample used corresponds to an integrated luminosity of $1.7\text{ }\text{ …

nl, es, gb, us, fr, it, de, ch, ru, br, cn, pl (code pays fourni par la source)

Evidence for an $η_c(1S) π^-$ resonance in $B^0 \to η_c(1S) K^+π^-$ decays

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres

A Dalitz plot analysis of $B^0 \to η_c(1S) K^+π^-$ decays is performed using data samples of $pp$ collisions collected with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,~8$ and $13$ TeV, corresponding to a total integrated luminosity of $4.7~\text{fb}^{-1}$. A satisfactory description …

nl, ch, es, gb, us, fr, it, de, ru, br, cn, cz, Zimbabwe, pl (code pays fourni par la source)

Studies of the resonance structure in $$D^{0} \rightarrow K^\mp \pi ^\pm \pi ^\pm \pi ^\mp $$ D 0 → K ∓ π ± π ± π ∓ decays

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni et autres

Amplitude models are constructed to describe the resonance structure of D 0 → K -π + π + π -and D 0 → K + π -π -π + decays using pp collision data collected at centre-of-mass energies of 7 and 8 …

ch, es, gb, fr, us, de, nl, ru, br, it, cn, pl (code pays fourni par la source)