L. Lopes

activity

20172021

J / ψ Λ

structure and observation of excited

Ξ^{-}

states in the

Ξ_{b}^{-} \to J / ψ Λ K^{-}

decay

268 citations · 662 across the 12 of their papers we have counts for

collaborators

12 papers

hep-ex2021★ 2 cited

Observation of the $B^{0} \to D^{* 0} K^{+} π^{-}$ and $B_{s}^{0} \to D^{* 0} K^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +988

The first observations of $B^{0} \to D^{*} (2007)^{0} K^{+} π^{-}$ and $B_{s}^{0} \to D^{*} (2007)^{0} K^{-} π^{+}$ decays are presented, and their branching…

hep-ex2020★ 268 cited

Evidence of a $J / ψ Λ$ structure and observation of excited $Ξ^{-}$ states in the $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +959

First evidence of a structure in the $J / ψ Λ$ invariant mass distribution is obtained from an amplitude analysis of $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ decays. The observed s…

hep-ex2020★ 28 cited

First branching fraction measurement of the suppressed decay $Ξ_{c}^{0} \to π^{-} Λ_{c}^{+}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +963

The $Ξ_{c}^{0}$ baryon is unstable and usually decays into charmless final states by the $c \to s u d$ transition. It can, however, also disintegrate into a $π^{-}$ meson and a…

hep-ex2020★ 53 cited

Study of the $ψ_{2} (3823)$ and $χ_{c 1} (3872)$ states in $B^{+} \to (J ψ π^{+} π^{-}) K^{+}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +956

The decays $B^{+} \to J / ψ π^{+} π^{-} K^{+}$ are studied using a data set corresponding to an integrated luminosity of 9fb $^{- 1}$ collected with the LHCb detector in proton-proton co…

hep-ex2019★ 32 cited

Search for $C P$ violation and observation of $P$ violation in $Λ_{b}^{0} \to p π^{-} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +902

A search for $C P$ violation in the $Λ_{b}^{0} \to p π^{-} π^{+} π^{-}$ decay is performed using LHCb data corresponding to an integrated luminosity of 6.6 $f b^{- 1}$ collected in $pp$ coll…

hep-ex2018★ 76 cited

Observation of two resonances in the $Λ_{b}^{0} π^{\pm}$ systems and precise measurement of $Σ_{b}^{\pm}$ and $Σ_{b}^{*\pm}$ properties

LHCb collaboration, R. Aaij, C. Abellán Beteta +837

The first observation of two structures consistent with resonances in the final states $Λ_{b}^{0} π^{-}$ and $Λ_{b}^{0} π^{+}$ is reported using samples of $pp$ collision data collected by the…

hep-ex2018★ 40 cited

Study of $Υ$ production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +840

The production of $Υ (n S)$ mesons ( $n = 1, 2, 3$ ) in $p$ Pb and Pb $p$ collisions at a centre-of-mass energy per nucleon pair $s_{N N} = 8.16$ TeV is measured by the LHCb experiment,…

hep-ex2017★ 39 cited

Studies of the resonance structure in $D^{0} \to K^{\mp} π^{\pm} π^{\pm} π^{\mp}$ decays

LHCb collaboration, R. Aaij, B. Adeva +791

Amplitude models are constructed to describe the resonance structure of $D^{0} \to K^{-} π^{+} π^{+} π^{-}$ and $D^{0} \to K^{+} π^{-} π^{-} π^{+}$ decays using $pp$ collision data co…

hep-ex2017★ 33 cited

Search for the rare decay $Λ_{c}^{+} \to p μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +792

A search for the flavor-changing neutral-current decay $Λ_{c}^{+} \to p μ^{+} μ^{-}$ is reported using a data set corresponding to an integrated luminosity of $3.0 f b^{- 1}$ collected…

hep-ex2017★ 34 cited

A measurement of the $C P$ asymmetry difference in $Λ_{c}^{+} \to p K^{-} K^{+}$ and $p π^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +791

The difference between the $C P$ asymmetries in the decays $Λ_{c}^{+} \to p K^{-} K^{+}$ and $Λ_{c}^{+} \to p π^{-} π^{+}$ is presented. Proton-proton collision data t…

hep-ex2017★ 24 cited

Search for excited $B_{c}^{+}$ states

LHCb collaboration, R. Aaij, B. Adeva +792

A search is performed in the invariant mass spectrum of the $B_{c}^{+} π^{+} π^{-}$ system for the excited $B_{c}^{+}$ states $B_{c} (2^{1} S_{0})^{+}$ and $B_{c} (2^{3} S_{1})^{+}$ using a data sam…

hep-ex2017★ 33 cited

Updated determination of $D^{0}$ - $D^{0}$ mixing and CP violation parameters with $D^{0} \to K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +792

We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of $D^{0} \to K^{+} π^{-}$ to $D^{0} \to K^{-} π^{+}$ rates. The analysis uses a data sample of proton-pro…

Observation of the B0→D∗0K+π− and Bs0​→D∗0K−π+ decays

Evidence of a J/ψΛ structure and observation of excited Ξ− states in the Ξb−​→J/ψΛK− decay

First branching fraction measurement of the suppressed decay Ξc0​→π−Λc+​

Study of the ψ2​(3823) and χc1​(3872) states in B+→(Jψπ+π−)K+ decays

Search for CP violation and observation of P violation in Λb0​→pπ−π+π− decays

Observation of two resonances in the Λb0​π± systems and precise measurement of Σb±​ and Σb∗±​ properties

Study of Υ production in pPb collisions at sNN​​=8.16 TeV

Studies of the resonance structure in D0→K∓π±π±π∓ decays

Search for the rare decay Λc+​→pμ+μ−

A measurement of the CP asymmetry difference in Λc+​→pK−K+ and pπ−π+ decays

Search for excited Bc+​ states

Updated determination of D0-D0 mixing and CP violation parameters with D0→K+π− decays

Observation of the $B^{0} \to D^{* 0} K^{+} π^{-}$ and $B_{s}^{0} \to D^{* 0} K^{-} π^{+}$ decays

Evidence of a $J / ψ Λ$ structure and observation of excited $Ξ^{-}$ states in the $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ decay

First branching fraction measurement of the suppressed decay $Ξ_{c}^{0} \to π^{-} Λ_{c}^{+}$

Study of the $ψ_{2} (3823)$ and $χ_{c 1} (3872)$ states in $B^{+} \to (J ψ π^{+} π^{-}) K^{+}$ decays

Search for $C P$ violation and observation of $P$ violation in $Λ_{b}^{0} \to p π^{-} π^{+} π^{-}$ decays

Observation of two resonances in the $Λ_{b}^{0} π^{\pm}$ systems and precise measurement of $Σ_{b}^{\pm}$ and $Σ_{b}^{*\pm}$ properties

Study of $Υ$ production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

Studies of the resonance structure in $D^{0} \to K^{\mp} π^{\pm} π^{\pm} π^{\mp}$ decays

Search for the rare decay $Λ_{c}^{+} \to p μ^{+} μ^{-}$

A measurement of the $C P$ asymmetry difference in $Λ_{c}^{+} \to p K^{-} K^{+}$ and $p π^{-} π^{+}$ decays

Search for excited $B_{c}^{+}$ states

Updated determination of $D^{0}$ - $D^{0}$ mixing and CP violation parameters with $D^{0} \to K^{+} π^{-}$ decays