R. Fay

activity

20142017

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 7.2k across the 86 of their papers we have counts for

collaborators

Showing 2017Show all

21 papers · 1 filter

hep-ex2017★ 48 cited

Measurement of the shape of the $Λ_{b}^{0} \to Λ_{c}^{+} μ^{-} ν$ differential decay rate

LHCb collaboration, R. Aaij, B. Adeva +801

A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay $Λ_{b}^{0} \to Λ_{c}^{+} μ^{-} ν$ is reported, using data corresponding to…

hep-ex2017★ 14 cited

Study of $b b ˉ$ correlations in high energy proton-proton collisions

LHCb collaboration, R. Aaij, B. Adeva +802

Kinematic correlations for pairs of beauty hadrons, produced in high energy proton-proton collisions, are studied. The data sample used was collected with the LHCb experiment at ce…

hep-ex2017★ 102 cited

Study of prompt D $^{0}$ meson production in pPb collisions at $s$ =5 TeV

LHCb collaboration, R. Aaij, B. Adeva +807

Production of prompt D $^{0}$ mesons is studied in proton-lead and lead-proton collisions recorded at the LHCb detector at the LHC. The data sample corresponds to an integrated lumino…

hep-ex2017★ 39 cited

Observation of $D^{0}$ meson decays to $π^{+} π^{-} μ^{+} μ^{-}$ and $K^{+} K^{-} μ^{+} μ^{-}$ final states

LHCb collaboration, R. Aaij, B. Adeva +801

The first observation of the $D^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ and $D^{0} \to K^{+} K^{-} μ^{+} μ^{-}$ decays is reported using a sample of proton-proton collisions collected by LHCb at a center-of-mass e…

hep-ex2017★ 11 cited

Updated branching fraction measurements of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ decays

LHCb collaboration, R. Aaij, B. Adeva +776

The charmless three-body decays $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ (where $h^{(')} = π, K$ ) are analysed using a sample of $pp$ collision dat…

hep-ex2017★ 29 cited

Improved limit on the branching fraction of the rare decay $K_{S}^{0} \to μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +767

A search for the decay $K_{S}^{0} \to μ^{+} μ^{-}$ is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3 fb$^{-1…

hep-ex2017★ 59 cited

Updated search for long-lived particles decaying to jet pairs

LHCb collaboration, R. Aaij, B. Adeva +766

A search is presented for long-lived particles with a mass between 25 and 50 GeV/ $c^{2}$ and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an i…

hep-ex2017★ 734 cited

Test of lepton universality with $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +785

A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ and $B^{0} \to K^{* 0} e^{+} e^{-}$ deca…

hep-ex2017★ 24 cited

Measurement of $B_{s}^{0}$ and $D_{s}^{-}$ meson lifetimes

LHCb collaboration, R. Aaij, B. Adeva +774

We report on a measurement of the flavor-specific $B_{s}^{0}$ lifetime and of the $D_{s}^{-}$ lifetime using proton-proton collisions at center-of-mass energies of 7 and 8 TeV, col…

hep-ex2017★ 14 cited

Observation of charmless baryonic decays $B_{(s)}^{0} \to p p h^{+} h^{' -}$

LHCb collaboration, R. Aaij, B. Adeva +770

Decays of $B^{0}$ and $B_{s}^{0}$ mesons to the charmless baryonic final states $p p h^{+} h^{' -}$ , where $h$ and $h^{'}$ each denote a kaon or a pion, are searched fo…

hep-ex2017★ 37 cited

Resonances and $C P$ violation in $B_{s}^{0}$ and $B_{s}^{0} \to J / ψ K^{+} K^{-}$ decays in the mass region above the $ϕ (1020)$

LHCb collaboration, R. Aaij, B. Adeva +770

The decays of $B_{s}^{0}$ and $B_{s}^{0}$ mesons into the $J / ψ K^{+} K^{-}$ final state are studied in the $K^{+} K^{-}$ mass region above the $ϕ (1020)$ meson in order to determine the res…

hep-ex2017★ 42 cited

Observation of the decays $Λ_{b}^{0} \to χ_{c 1} p K^{-}$ and $Λ_{b}^{0} \to χ_{c 2} p K^{-}$

LHCb collaboration, R. Aaij, B. Adeva +776

The first observation of the decays $Λ_{b}^{0} \to χ_{c 1} p K^{-}$ and $Λ_{b}^{0} \to χ_{c 2} p K^{-}$ is reported using a data sample corresponding to an integrated luminosity of $3.0$ fb$^{-1…

hep-ex2017★ 4 cited

Observation of the $B^{+} \to D^{*-} K^{+} π^{+}$ decay

LHCb collaboration, R. Aaij, B. Adeva +771

The $B^{+} \to D^{*-} K^{+} π^{+}$ decay potentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision dat…

hep-ex2017★ 40 cited

Measurement of $B^{0}$ , $B_{s}^{0}$ , $B^{+}$ and $Λ_{b}^{0}$ production asymmetries in 7 and 8 TeV proton-proton collisions

LHCb collaboration, R. Aaij, B. Adeva +763

The $B^{0}$ , $B_{s}^{0}$ , $B^{+}$ and $Λ_{b}^{0}$ hadron production asymmetries are measured using a data sample corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ , collected by the LH…

hep-ex2017★ 94 cited

Search for the decays $B_{s}^{0} \to τ^{+} τ^{-}$ and $B^{0} \to τ^{+} τ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +775

A search for the rare decays $B_{s}^{0} \to τ^{+} τ^{-}$ and $B^{0} \to τ^{+} τ^{-}$ is performed using proton--proton collision data collected with the LHCb detector. The data sample corresponds to a…

hep-ex2017★ 14 cited

Observation of the decay $B_{s}^{0} \to η_{c} ϕ$ and evidence for $B_{s}^{0} \to η_{c} π^{+} π^{-}$

LHCb collaboration, R. Aaij, B. Adeva +762

A study of $B_{s}^{0} \to η_{c} ϕ$ and $B_{s}^{0} \to η_{c} π^{+} π^{-}$ decays is performed using $pp$ collision data corresponding to an integrated luminosity of 3.0$\,\rm fb^{-1}…

hep-ex2017★ 19 cited

Measurement of the $B^{\pm}$ production asymmetry and the $C P$ asymmetry in $B^{\pm} \to J / ψ K^{\pm}$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

The $B^{\pm}$ meson production asymmetry in $pp$ collisions is measured using $B^{+} \to D ˉ^{0} π^{+}$ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC…

hep-ex2017★ 26 cited

Observation of the suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +768

The suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$ , excluding the $J / ψ$ and $ψ (2 S) \to μ^{+} μ^{-}$ resonances, is observed for the first time with a significance o…

hep-ex2017★ 25 cited

Observation of the $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ decay

LHCb collaboration, R. Aaij, B. Adeva +764

The observation of the decay $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ is reported, using a data sample corresponding to an integrated luminosity of $3 fb^{- 1}$ , collected b…

hep-ex2017★ 12 cited

Measurement of $C P$ asymmetries in $D^{\pm} \to η^{'} π^{\pm}$ and $D_{s}^{\pm} \to η^{'} π^{\pm}$ decays

LHCb collaboration, R. Aaij, B. Adeva +770

A search for $C P$ violation in $D^{\pm} \to η^{'} π^{\pm}$ and $D_{s}^{\pm} \to η^{'} π^{\pm}$ decays is performed using proton-proton collision data, corre…

hep-ex2017★ 29 cited

Observation of $B_{c}^{+} \to D^{0} K^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +763

Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ , recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV, the $B_{c}^{…

Measurement of the shape of the Λb0​→Λc+​μ−ν differential decay rate

Study of bbˉ correlations in high energy proton-proton collisions

Study of prompt D0 meson production in pPb collisions at s​=5 TeV

Observation of D0 meson decays to π+π−μ+μ− and K+K−μ+μ− final states

Updated branching fraction measurements of B(s)0​→KS0​h+h′− decays

Improved limit on the branching fraction of the rare decay KS0​→μ+μ−

Updated search for long-lived particles decaying to jet pairs

Test of lepton universality with B0→K∗0ℓ+ℓ− decays

Measurement of Bs0​ and Ds−​ meson lifetimes

Observation of charmless baryonic decays B(s)0​→pp​h+h′−

Resonances and CP violation in Bs0​ and Bs0​→J/ψK+K− decays in the mass region above the ϕ(1020)

Observation of the decays Λb0​→χc1​pK− and Λb0​→χc2​pK−

Observation of the B+→D∗−K+π+ decay

Measurement of B0, Bs0​, B+ and Λb0​ production asymmetries in 7 and 8 TeV proton-proton collisions

Search for the decays Bs0​→τ+τ− and B0→τ+τ−

Observation of the decay Bs0​→ηc​ϕ and evidence for Bs0​→ηc​π+π−

Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

Observation of the suppressed decay Λb0​→pπ−μ+μ−

Observation of the Ξb−​→J/ψΛK− decay

Measurement of CP asymmetries in D±→η′π± and Ds±​→η′π± decays

Observation of Bc+​→D0K+ decays

Measurement of the shape of the $Λ_{b}^{0} \to Λ_{c}^{+} μ^{-} ν$ differential decay rate

Study of $b b ˉ$ correlations in high energy proton-proton collisions

Study of prompt D $^{0}$ meson production in pPb collisions at $s$ =5 TeV

Observation of $D^{0}$ meson decays to $π^{+} π^{-} μ^{+} μ^{-}$ and $K^{+} K^{-} μ^{+} μ^{-}$ final states

Updated branching fraction measurements of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ decays

Improved limit on the branching fraction of the rare decay $K_{S}^{0} \to μ^{+} μ^{-}$

Test of lepton universality with $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays

Measurement of $B_{s}^{0}$ and $D_{s}^{-}$ meson lifetimes

Observation of charmless baryonic decays $B_{(s)}^{0} \to p p h^{+} h^{' -}$

Resonances and $C P$ violation in $B_{s}^{0}$ and $B_{s}^{0} \to J / ψ K^{+} K^{-}$ decays in the mass region above the $ϕ (1020)$

Observation of the decays $Λ_{b}^{0} \to χ_{c 1} p K^{-}$ and $Λ_{b}^{0} \to χ_{c 2} p K^{-}$

Observation of the $B^{+} \to D^{*-} K^{+} π^{+}$ decay

Measurement of $B^{0}$ , $B_{s}^{0}$ , $B^{+}$ and $Λ_{b}^{0}$ production asymmetries in 7 and 8 TeV proton-proton collisions

Search for the decays $B_{s}^{0} \to τ^{+} τ^{-}$ and $B^{0} \to τ^{+} τ^{-}$

Observation of the decay $B_{s}^{0} \to η_{c} ϕ$ and evidence for $B_{s}^{0} \to η_{c} π^{+} π^{-}$

Measurement of the $B^{\pm}$ production asymmetry and the $C P$ asymmetry in $B^{\pm} \to J / ψ K^{\pm}$ decays

Observation of the suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$

Observation of the $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ decay

Measurement of $C P$ asymmetries in $D^{\pm} \to η^{'} π^{\pm}$ and $D_{s}^{\pm} \to η^{'} π^{\pm}$ decays

Observation of $B_{c}^{+} \to D^{0} K^{+}$ decays