Universitat Ramon Llull

output

19992026

most citedLHCb Detector Performance

1.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2020 · hep-exShow all

15 papers · 2 filters

hep-ex2020★ 103 cited

Angular analysis of the $B^{+} \to K^{*+} μ^{+} μ^{-}$ decay

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

We present an angular analysis of the $B^{+} \to K^{*+} (\to K_{S}^{0} π^{+}) μ^{+} μ^{-}$ decay using 9$\,\mbox{fb}^{-1}$ of $pp$ collision data collected with the L…

hep-ex2020★ 19 cited

Measurement of CP violation in the decay $B^{+} \to K^{+} π^{0}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +960

A measurement of direct CP violation in the decay $B^{+} \to K^{+} π^{0}$ is reported using a data sample corresponding to an integrated luminosity of 5.4 $\textrm{fb}^{-1}…

hep-ex2020★ 4 cited

Observation of the $B_{s}^{0} \to D^{*\pm} D^{\mp}$ decay

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

A search for the $B_{s}^{0} \to D^{*\pm} D^{\mp}$ decay is performed using proton-proton collision data at centre-of-mass energies of $7$ , $8$ and $13 TeV$ collected by…

hep-ex2020★ 39 cited

First observation of the decay $B_{s}^{0} \to K^{-} μ^{+} ν_{μ}$ and a measurement of $∣ V_{u b} ∣/∣ V_{c b} ∣$

LHCb collaboration, R. Aaij, C. Abellán Beteta +961

The first observation of the suppressed semileptonic $B_{s}^{0} \to K^{-} μ^{+} ν_{μ}$ decay is reported. Using a data sample recorded in {\it pp} collisions in 2012 with the LHCb detector, co…

hep-ex2020★ 30 cited

Observation of a new excited $D_{s}^{+}$ meson in $B^{0} \to D^{-} D^{+} K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +961

Using $pp$ collision data corresponding to an integrated luminosity of $5.4 fb^{- 1}$ collected with the LHCb detector at a center-of-mass energy of $13 TeV$ , the $B^0…

hep-ex2020★ 29 cited

Search for heavy neutral leptons in $W^{+} \to μ^{+} μ^{\pm} jet$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +980

A search is performed for heavy neutrinos in the decay of a $W$ boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $3.0 \text{ fb…

hep-ex2020★ 26 cited

Study of $B_{s}^{0} \to J / ψ π^{+} π^{-} K^{+} K^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +958

The decays $B_{s}^{0} \to J / ψ π^{+} π^{-} K^{+} K^{-}$ are studied using a data set corresponding to an integrated luminosity of 9fb $^{- 1}$ , collected with the LHCb detector in proton-pr…

hep-ex2020★ 46 cited

Observation of a new $Ξ_{b}^{0}$ state

LHCb collaboration, R. Aaij, C. Abellán Beteta +957

Using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of 8.5 fb $^{- 1}$ , the observation of a new excited $Ξ_{b}^{0}$ r…

hep-ex2020★ 9 cited

Measurement of the relative branching fractions of $B^{+} \to h^{+} h^{' +} h^{' -}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +957

The relative branching fractions of $B^{+} \to h^{+} h^{' +} h^{' -}$ decays, where $h^{(')}$ is a pion or kaon, are measured. The analysis is performed with a data sample…

hep-ex2020★ 52 cited

Observation of multiplicity-dependent prompt $χ_{c 1} (3872)$ and $ψ (2 S)$ production in $pp$ collisions

LHCb collaboration, R. Aaij, C. Abellán Beteta +968

The production of $χ_{c 1} (3872)$ and $ψ (2 S)$ hadrons is studied as a function of charged particle multiplicity in $pp$ collisions at a center-of-mass energy of 8 TeV, corresponding…

hep-ex2020★ 224 cited

Amplitude analysis of the $B^{+} \to D^{+} D^{-} K^{+}$ decay

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

Results are reported from an amplitude analysis of the $B^{+} \to D^{+} D^{-} K^{+}$ decay. The analysis is carried out using LHCb proton-proton collision data taken at $s = 7, 8,$ and $1…

hep-ex2020★ 192 cited

Model-independent study of structure in $B^{+} \to D^{+} D^{-} K^{+}$ decays

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

The only anticipated resonant contributions to $B^{+} \to D^{+} D^{-} K^{+}$ decays are charmonium states in the $D^{+} D^{-}$ channel. A model-independent analysis, using LHCb proton-proton colli…

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★ 12 cited

Measurement of $C P$ observables in $B^{\pm} \to D K^{\pm}$ and $B^{\pm} \to D π^{\pm}$ with $D \to K_{S}^{0} K^{\pm} π^{\mp}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +904

Measurements of $C P$ observables in $B^{\pm} \to D K^{\pm}$ and $B^{\pm} \to D π^{\pm}$ decays are presented, where $D$ represents a superposition of $D^{0}$ and $D ˉ^{0}$ states. The $D$ …

hep-ex2020★ 45 cited

Observation of a new baryon state in the $Λ_{b}^{0} π^{+} π^{-}$ mass spectrum

LHCb collaboration, R. Aaij, C. Abellán Beteta +905

A new baryon state is observed in the $Λ_{b}^{0} π^{+} π^{-}$ mass spectrum with high significance using a data sample of $pp$ collisions, collected with the LHCb detector at centre-of-mass…

Angular analysis of the B+→K∗+μ+μ− decay

Measurement of CP violation in the decay B+→K+π0

Observation of the Bs0​→D∗±D∓ decay

First observation of the decay Bs0​→K−μ+νμ​ and a measurement of ∣Vub​∣/∣Vcb​∣

Observation of a new excited Ds+​ meson in B0→D−D+K+π− decays

Search for heavy neutral leptons in W+→μ+μ±jet decays

Study of Bs0​→J/ψπ+π−K+K− decays

Observation of a new Ξb0​ state

Measurement of the relative branching fractions of B+→h+h′+h′− decays

Observation of multiplicity-dependent prompt χc1​(3872) and ψ(2S) production in pp collisions

Amplitude analysis of the B+→D+D−K+ decay

Model-independent study of structure in B+→D+D−K+ decays

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

Measurement of CP observables in B±→DK± and B±→Dπ± with D→KS0​K±π∓ decays

Observation of a new baryon state in the Λb0​π+π− mass spectrum

Angular analysis of the $B^{+} \to K^{*+} μ^{+} μ^{-}$ decay

Measurement of CP violation in the decay $B^{+} \to K^{+} π^{0}$

Observation of the $B_{s}^{0} \to D^{*\pm} D^{\mp}$ decay

First observation of the decay $B_{s}^{0} \to K^{-} μ^{+} ν_{μ}$ and a measurement of $∣ V_{u b} ∣/∣ V_{c b} ∣$

Observation of a new excited $D_{s}^{+}$ meson in $B^{0} \to D^{-} D^{+} K^{+} π^{-}$ decays

Search for heavy neutral leptons in $W^{+} \to μ^{+} μ^{\pm} jet$ decays

Study of $B_{s}^{0} \to J / ψ π^{+} π^{-} K^{+} K^{-}$ decays

Observation of a new $Ξ_{b}^{0}$ state

Measurement of the relative branching fractions of $B^{+} \to h^{+} h^{' +} h^{' -}$ decays

Observation of multiplicity-dependent prompt $χ_{c 1} (3872)$ and $ψ (2 S)$ production in $pp$ collisions

Amplitude analysis of the $B^{+} \to D^{+} D^{-} K^{+}$ decay

Model-independent study of structure in $B^{+} \to D^{+} D^{-} K^{+}$ decays

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

Measurement of $C P$ observables in $B^{\pm} \to D K^{\pm}$ and $B^{\pm} \to D π^{\pm}$ with $D \to K_{S}^{0} K^{\pm} π^{\mp}$ decays

Observation of a new baryon state in the $Λ_{b}^{0} π^{+} π^{-}$ mass spectrum