M. Roehrken

activity

20182023

most citedObservation of a narrow pentaquark state,

P_{c} (4312)^{+}

, and of two-peak structure of the

P_{c} (4450)^{+}

738 citations · 1.3k across the 19 of their papers we have counts for

collaborators

19 papers

hep-ex2023★ 2 cited

Measurement of $C P$ asymmetries in $B^{0} \to ϕ K_{S}^{0}$ decays with Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +432

We present a measurement of time-dependent rate asymmetries in $B^{0} \to ϕ K_{S}^{0}$ decays to search for non-standard-model physics in $b \to q q s$ transitions. The data sampl…

hep-ex2020

Searches for 25 rare and forbidden decays of $D^{+}$ and $D_{s}^{+}$ mesons

LHCb collaboration, R. Aaij, C. Abellán Beteta +998

A search is performed for rare and forbidden charm decays of the form $D_{(s)}^{+} \to h^{\pm} ℓ^{+} ℓ^{(') \mp}$ , where $h^{\pm}$ is a pion or kaon and $ℓ^{(^{'}) \pm}$ is an ele…

hep-ex2020★ 6 cited

Measurement of branching fraction ratios for $B^{+} \to D^{+} D^{-} K^{+}$ , $B^{+} \to D^{-} D^{+} K^{+}$ , and $B^{0} \to D^{*-} D^{0} K^{+}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +914

A measurement of four branching-fraction ratios for three-body decays of $B$ mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 $pp$ collision…

hep-ex2020★ 15 cited

Measurement of the shape of the $B_{s}^{0} \to D_{s}^{*-} μ^{+} ν_{μ}$ differential decay rate

LHCb collaboration, R. Aaij, C. Abellán Beteta +906

The shape of the $B_{s}^{0} \to D_{s}^{*-} μ^{+} ν_{μ}$ differential decay rate is obtained as a function of the hadron recoil using proton-proton collision data at a centre-of-mass ene…

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★ 8 cited

Measurement of the branching fraction of the decay $B_{s}^{0} \to K_{S}^{0} K_{S}^{0}$

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

A measurement of the branching fraction of the decay $B_{s}^{0} \to K_{S}^{0} K_{S}^{0}$ is performed using proton-proton collision data corresponding to an integrated luminosity of 5 $fb^{-1}…

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…

hep-ex2020★ 28 cited

Constraints on the $K_{S}^{0} \to μ^{+} μ^{-}$ branching fraction

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

A search for the decay $K_{S}^{0} \to μ^{+} μ^{-}$ is performed using proton-proton collision data, corresponding to an integrated luminosity of $5.6 fb^{- 1}$ a…

hep-ex2019★ 37 cited

Measurement of the $η_{c} (1 S)$ production cross-section in $pp$ collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +913

Using a data sample corresponding to an integrated luminosity of $2.0 f b^{- 1}$ , collected by the LHCb experiment, the production of the $η_{c} (1 S)$ state in proton-proton collisions…

hep-ex2019★ 37 cited

Measurement of the $B_{c}^{-}$ meson production fraction and asymmetry in 7 and 13 TeV $pp$ collisions

LHCb collaboration, R. Aaij, C. Abellán Beteta +900

The production fraction of the $B_{c}^{-}$ meson with respect to the sum of $B^{-}$ and $B ˉ^{0}$ mesons is measured in both 7 and 13 TeV center-of-mass energy $pp$ collisions produced…

hep-ex2019★ 31 cited

Measurement of $f_{s} / f_{u}$ variation with proton-proton collision energy and $B$ -meson kinematics

LHCb collaboration, R. Aaij, C. Abellán Beteta +903

The ratio of the $B_{s}^{0}$ and $B^{+}$ fragmentation fractions $f_{s}$ and $f_{u}$ is studied with $B_{s}^{0} \to J / ψ ϕ$ and $B^+\to\mathrm{J…

hep-ex2019★ 28 cited

Search for the lepton-flavour violating decays $B^{+} \to K^{+} μ^{\pm} e^{\mp}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +895

A search for the lepton-flavour violating decays $B^{+} \to K^{+} μ^{\pm} e^{\mp}$ is performed using a sample of proton-proton collision data, collected with the LHCb experiment at ce…

hep-ex2019★ 75 cited

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

LHCb collaboration, R. Aaij, C. Abellán Beteta +868

The results of an amplitude analysis of the charmless three-body decay $B^{+} \to π^{+} π^{+} π^{-}$ , in which $C P$ -violation effects are taken into account, are reported. The anal…

hep-ex2019★ 738 cited

Observation of a narrow pentaquark state, $P_{c} (4312)^{+}$ , and of two-peak structure of the $P_{c} (4450)^{+}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +866

A narrow pentaquark state, $P_{c} (4312)^{+}$ , decaying to $J / ψ p$ is discovered with a statistical significance of $7.3 σ$ in a data sample of $Λ_{b}^{0} \to J / ψ p K^{-}$ decays which is an or…

hep-ex2019★ 41 cited

Measurement of $B^{+}$ , $B^{0}$ and $Λ_{b}^{0}$ production in $p Pb$ collisions at $s_{NN} = 8.16 TeV$

LHCb Collaboration, R. Aaij, C. Abellán Beteta +842

The production of $B^{+}$ , $B^{0}$ and $Λ_{b}^{0}$ hadrons is studied in proton-lead collisions at a centre-of-mass energy per nucleon pair of $s_{NN} = 8.16 TeV$ record…

hep-ex2019★ 21 cited

Measurement of the $C P$ -violating phase $ϕ_{s}$ from $B_{s}^{0} \to J / ψ π^{+} π^{-}$ decays in 13 TeV $pp$ collisions

LHCb Collaboration, R. Aaij, C. Abellán Beteta +844

Decays of $B_{s}^{0}$ and $B_{s}^{0}$ mesons into $J / ψ π^{+} π^{-}$ final states are studied in a data sample corresponding to 1.9 fb $^{- 1}$ of integrated luminosity collect…

hep-ex2018★ 22 cited

Measurement of the charm-mixing parameter $y_{C P}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +841

A measurement of the charm-mixing parameter $y_{C P}$ using $D^{0} \to K^{+} K^{-}$ , $D^{0} \to π^{+} π^{-}$ , and $D^{0} \to K^{-} π^{+}$ decays is reported. The $D^{0}$ mesons are required to originat…

hep-ex2018★ 69 cited

Measurement of antiproton production in $pHe$ collisions at $s_{N N} = 110$ GeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +839

The cross-section for prompt antiproton production in collisions of protons with an energy of $6.5$ TeV incident on helium nuclei at rest is measured with the LHCb experiment from…

hep-ex2018★ 64 cited

Angular moments of the decay $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ at low hadronic recoil

LHCb collaboration, R. Aaij, B. Adeva +835

An analysis of the angular distribution of the decay $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ is presented, using data collected with the LHCb detector between 2011 and 2016 and correspond…

Measurement of CP asymmetries in B0→ϕKS0​ decays with Belle II

Searches for 25 rare and forbidden decays of D+ and Ds+​ mesons

Measurement of branching fraction ratios for B+→D∗+D−K+, B+→D∗−D+K+, and B0→D∗−D0K+ decays

Measurement of the shape of the Bs0​→Ds∗−​μ+νμ​ differential decay rate

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

Measurement of the branching fraction of the decay Bs0​→KS0​KS0​

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

Constraints on the KS0​→μ+μ− branching fraction

Measurement of the ηc​(1S) production cross-section in pp collisions at s​=13 TeV

Measurement of the Bc−​ meson production fraction and asymmetry in 7 and 13 TeV pp collisions

Measurement of fs​/fu​ variation with proton-proton collision energy and B-meson kinematics

Search for the lepton-flavour violating decays B+→K+μ±e∓

Amplitude analysis of the B+→π+π+π− decay

Observation of a narrow pentaquark state, Pc​(4312)+, and of two-peak structure of the Pc​(4450)+

Measurement of B+, B0 and Λb0​ production in pPb collisions at sNN​​=8.16TeV

Measurement of the CP-violating phase ϕs​ from Bs0​→J/ψπ+π− decays in 13 TeV pp collisions

Measurement of the charm-mixing parameter yCP​

Measurement of antiproton production in pHe collisions at sNN​​=110 GeV

Angular moments of the decay Λb0​→Λμ+μ− at low hadronic recoil