L. Calero Diaz

activity

20142021

most citedObservation of an exotic narrow doubly charmed tetraquark

403 citations · 4.9k across the 50 of their papers we have counts for

collaborators

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16 papers · 1 filter

hep-ex2021★ 6 cited

Identification of charm jets at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

The identification of charm jets is achieved at LHCb for data collected in 2015-2018 using a method based on the properties of displaced vertices reconstructed and matched with jet…

hep-ex2021★ 52 cited

Simultaneous determination of CKM angle $γ$ and charm mixing parameters

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

A combination of measurements sensitive to the $C P$ violation angle $γ$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscilla…

hep-ex2021★ 403 cited

Observation of an exotic narrow doubly charmed tetraquark

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. The observation of a new type of hadronic state, a doubly…

hep-ex2021★ 100 cited

Analysis of neutral $B$ -meson decays into two muons

LHCb collaboration, R. Aaij, C. Abellán Beteta +953

Branching fraction and effective lifetime measurements of the rare decay $B_{s}^{0} \to μ^{+} μ^{-}$ and searches for the decays $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ are reported using proton…

hep-ex2021

Measurement of prompt charged-particle production in pp collisions at a centre-of-mass energy of 13 TeV

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

The differential cross-section of prompt inclusive production of long-lived charged particles in proton-proton collisions is measured using a data sample recorded by the LHCb exper…

hep-ex2021★ 29 cited

Search for time-dependent $C P$ violation in $D^{0} \to K^{+} K^{-}$ and $D^{0} \to π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +953

A search for time-dependent violation of the charge-parity symmetry in $D^{0} \to K^{+} K^{-}$ and $D^{0} \to π^{+} π^{-}$ decays is performed at the LHCb experiment using proton-proton collis…

hep-ex2021★ 8 cited

Measurement of the prompt-production cross-section ratio $σ (χ_{c 2}) / σ (χ_{c 1})$ in $p$ Pb collisions at $s_{N N}$ = 8.16 TeV

R. Aaij, C. Abellán Beteta, T. Ackernley +954

This Letter reports the first measurement of prompt $χ_{c 1}$ and $χ_{c 2}$ charmonium production in nuclear collisions at Large Hadron Collider energies. The cross-section ratio $σ(…

hep-ex2021★ 76 cited

Precise measurement of the $f_{s} / f_{d}$ ratio of fragmentation fractions and of $B_{s}^{0}$ decay branching fractions

LHCb collaboration, R. Aaij, C. Abellán Beteta +955

The ratio of the $B_{s}^{0}$ and $B^{0}$ fragmentation fractions, $f_{s} / f_{d}$ , in proton-proton collisions at the LHC, is obtained as a function of $B$ -meson transverse momentum and collis…

hep-ex2021★ 200 cited

Observation of new resonances decaying to $J / ψ K^{+}$ and $J / ψ ϕ$

LHCb collaboration, R. Aaij, C. Abellán Beteta +953

The first observation of exotic states with a new quark content $c c ˉ u s ˉ$ decaying to the $J / ψ K^{+}$ final state is reported with high significance from an amplitude anal…

hep-ex2020

Search for the rare decay $B^{0} \to J / ψ ϕ$

LHCb collaboration, R. Aaij, C. Abellán Beteta +962

A search for the rare decay $B^{0} \to J / ψ ϕ$ is performed using $pp$ collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, correspond…

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★ 27 cited

Measurement of the $Λ_{b}^{0} \to J / ψ Λ$ angular distribution and the $Λ_{b}^{0}$ polarisation in $pp$ collisions

LHCb collaboration, R. Aaij, C. Abellán Beteta +912

This paper presents an analysis of the $Λ_{b}^{0} \to J / ψ Λ$ angular distribution and the transverse production polarisation of $Λ_{b}^{0}$ baryons in proton-proton collisions at cen…

hep-ex2020★ 297 cited

Measurement of $C P$ -averaged observables in the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

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

An angular analysis of the $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ decay is presented using a data set corresponding to an integrated luminosity of 4.7 fb $^{- 1}$ of $pp…

hep-ex2020

First observation of excited $Ω_{b}^{-}$ states

LHCb collaboration, R. Aaij, C. Abellán Beteta +901

We report four narrow peaks in the $Ξ_{b}^{0} K^{-}$ mass spectrum obtained using $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV, corresponding to a total integrated lumino…

hep-ex2015★ 46 cited

Inclusive quarkonium production at forward rapidity in pp collisions at $s = 8$ TeV

ALICE Collaboration

We report on the inclusive production cross sections of J/ $ψ$ , $ψ$ (2S), $Υ$ (1S), $Υ$ (2S) and $Υ$ (3S), measured at forward rapidity with the ALICE detector in pp collisions at a cen…

Identification of charm jets at LHCb

Simultaneous determination of CKM angle γ and charm mixing parameters

Observation of an exotic narrow doubly charmed tetraquark

Analysis of neutral B-meson decays into two muons

Measurement of prompt charged-particle production in pp collisions at a centre-of-mass energy of 13 TeV

Search for time-dependent CP violation in D0→K+K− and D0→π+π− decays

Measurement of the prompt-production cross-section ratio σ(χc2​)/σ(χc1​) in pPb collisions at sNN​​ = 8.16 TeV

Precise measurement of the fs​/fd​ ratio of fragmentation fractions and of Bs0​ decay branching fractions

Observation of new resonances decaying to J/ψK+ and J/ψϕ

Search for the rare decay B0→J/ψϕ

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

Measurement of the Λb0​→J/ψΛ angular distribution and the Λb0​ polarisation in pp collisions

Measurement of CP-averaged observables in the B0→K∗0μ+μ− decay

First observation of excited Ωb−​ states

Inclusive quarkonium production at forward rapidity in pp collisions at s​=8 TeV

Simultaneous determination of CKM angle $γ$ and charm mixing parameters

Analysis of neutral $B$ -meson decays into two muons

Search for time-dependent $C P$ violation in $D^{0} \to K^{+} K^{-}$ and $D^{0} \to π^{+} π^{-}$ decays

Measurement of the prompt-production cross-section ratio $σ (χ_{c 2}) / σ (χ_{c 1})$ in $p$ Pb collisions at $s_{N N}$ = 8.16 TeV

Precise measurement of the $f_{s} / f_{d}$ ratio of fragmentation fractions and of $B_{s}^{0}$ decay branching fractions

Observation of new resonances decaying to $J / ψ K^{+}$ and $J / ψ ϕ$

Search for the rare decay $B^{0} \to J / ψ ϕ$

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

Measurement of the $Λ_{b}^{0} \to J / ψ Λ$ angular distribution and the $Λ_{b}^{0}$ polarisation in $pp$ collisions

Measurement of $C P$ -averaged observables in the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

First observation of excited $Ω_{b}^{-}$ states

Inclusive quarkonium production at forward rapidity in pp collisions at $s = 8$ TeV