B. Schmidt

activity

20052026

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 25.3k across the 487 of their papers we have counts for

collaborators

Showing 2021 · hep-exShow all

20 papers · 2 filters

hep-ex2021★ 14 cited

Study of the $B_{c}^{+}$ decays into charmonia and three light hadrons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +996

Using proton-proton collision data, corresponding to an integrated luminosity of $9 f b^{- 1}$ collected with the LHCb detector, seven decay modes of the $B_{c}^{+}$ meson into a $J / ψ$ or…

hep-ex2021★ 7 cited

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

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

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 luminosi…

hep-ex2021★ 94 cited

Tests of lepton universality using $B^{0} \to K_{S}^{0} ℓ^{+} ℓ^{-}$ and $B^{+} \to K^{*+} ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

Tests of lepton universality in $B^{0} \to K_{S}^{0} ℓ^{+} ℓ^{-}$ and $B^{+} \to K^{*+} ℓ^{+} ℓ^{-}$ decays where $ℓ$ is either an electron or a muon are presented. The differential b…

hep-ex2021★ 25 cited

Search for the doubly charmed baryon $Ξ_{cc}^{+}$ in the $Ξ_{c}^{+} π^{-} π^{+}$ final state

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +992

A search for the doubly charmed baryon $Ξ_{cc}^{+}$ is performed in the $Ξ_{c}^{+} π^{-} π^{+}$ invariant-mass spectrum, where the $Ξ_{c}^{+}$ baryon is reconstructed in t…

hep-ex2021★ 329 cited

Study of the doubly charmed tetraquark $T_{cc}^{+}$

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

An exotic narrow state in the $D^{0} D^{0} π^{+}$ mass spectrum just below the $D^{*+} D^{0}$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1…

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★ 5 cited

Updated search for $B_{c}^{+}$ decays to two charm mesons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

A data set corresponding to an integrated luminosity of $9 fb^{- 1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D…

hep-ex2021★ 15 cited

Measurement of $J / ψ$ production cross-sections in $pp$ collisions at $s = 5$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +990

The production cross-sections of $J / ψ$ mesons in proton-proton collisions at a centre-of-mass energy of $s = 5$ TeV are measured using a data sample corresponding to an integr…

hep-ex2021★ 35 cited

Measurement of the nuclear modification factor and prompt charged particle production in $p Pb$ and $pp$ collisions at $s_{NN} = 5 TeV$

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

The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon centre-of-mass energy ${\sqrt{s_{\scriptscriptstyle\math…

hep-ex2021★ 115 cited

Measurement of the $B_{s}^{0} \to μ^{+} μ^{-}$ decay properties and search for the $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ decays

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

An improved measurement of the 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 performed at the LHCb experiment using data collected in…

hep-ex2021★ 112 cited

Evidence for a new structure in the $J / ψ p$ and $J / ψ p ˉ$ systems in $B_{s}^{0} \to J / ψ p p ˉ$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +987

An amplitude analysis of flavour-untagged $B_{s}^{0} \to J / ψ p p ˉ$ decays is performed using a sample of $797 \pm 31$ decays reconstructed with the LHCb detector. The data, collected…

hep-ex2021★ 22 cited

$J / ψ$ photo-production in Pb-Pb peripheral collisions at $s_{NN}$ = 5 TeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +942

The photo-production of $J / ψ$ mesons at low transverse momentum is studied in peripheral lead-lead collisions collected by the LHCb experiment at a centre-of-mass energy per nucleo…

hep-ex2021★ 4 cited

Angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

LHCb Collaboration, R. Aaij, A. S. W. Abdelmotteleb +992

An angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$ ,…

hep-ex2021★ 1 cited

First measurement of the $C P$ -violating phase in $B_{s}^{0} \to J / ψ (\to e^{+} e^{-}) ϕ$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +954

A flavour-tagged time-dependent angular analysis of $B_{s}^{0} \to J / ψ ϕ$ decays is presented where the $J / ψ$ meson is reconstructed through its decay to an $e^{+} e^{-}$ pair. The analysis u…

hep-ex2021★ 154 cited

Branching fraction measurements of the rare $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ and $B_{s}^{0} \to f_{2}^{'} (1525) μ^{+} μ^{-}$ decays

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

The branching fraction of the rare $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ decay is measured using data collected by the LHCb experiment at center-of-mass energies of $7$ , $8$ and $13 TeV$ …

hep-ex2021★ 5 cited

Angular analysis of $B^{0} \to D^{-} D_{s}^{+}$ with $D_{s}^{*+} \to D_{s}^{+} γ$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +946

The first full angular analysis of the $B^{0} \to D^{*-} D_{s}^{*+}$ decay is performed using 6 fb $^{- 1}$ of $pp$ collision data collected with the LHCb experiment at a centre-of-mass…

hep-ex2021★ 372 cited

Test of lepton universality in beauty-quark decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +946

The Standard Model of particle physics currently provides our best description of fundamental particles and their interactions. The theory predicts that the different charged lepto…

hep-ex2021★ 11 cited

Search for $C P$ violation in $D_{(s)}^{+} \to h^{+} π^{0}$ and $D_{(s)}^{+} \to h^{+} η$ decays

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

Searches for $C P$ violation in the two-body decays $D_{(s)}^{+} \to h^{+} π^{0}$ and $D_{(s)}^{+} \to h^{+} η$ (where $h^{+}$ denotes a $π^{+}$ or $K^{+}$ meson) are p…

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★ 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…

Study of the Bc+​ decays into charmonia and three light hadrons

Searches for rare Bs0​ and B0 decays into four muons

Tests of lepton universality using B0→KS0​ℓ+ℓ− and B+→K∗+ℓ+ℓ− decays

Search for the doubly charmed baryon Ξcc+​ in the Ξc+​π−π+ final state

Study of the doubly charmed tetraquark Tcc+​

Observation of an exotic narrow doubly charmed tetraquark

Updated search for Bc+​ decays to two charm mesons

Measurement of J/ψ production cross-sections in pp collisions at s​=5 TeV

Measurement of the nuclear modification factor and prompt charged particle production in pPb and pp collisions at sNN​​=5TeV

Measurement of the Bs0​→μ+μ− decay properties and search for the B0→μ+μ− and Bs0​→μ+μ−γ decays

Evidence for a new structure in the J/ψp and J/ψpˉ​ systems in Bs0​→J/ψppˉ​ decays

J/ψ photo-production in Pb-Pb peripheral collisions at sNN​​ = 5 TeV

Angular analysis of the rare decay Bs0​→ϕμ+μ−

First measurement of the CP-violating phase in Bs0​→J/ψ(→e+e−)ϕ decays

Branching fraction measurements of the rare Bs0​→ϕμ+μ− and Bs0​→f2′​(1525)μ+μ− decays

Angular analysis of B0→D∗−Ds∗+​ with Ds∗+​→Ds+​γ decays