R. F. Koopman

most citedExclusive

J / ψ

and

ψ (2 S)

production in

pp

collisions at

s = 7

TeV

136 citations · 471 across the 9 of their papers we have counts for

collaborators

9 papers

hep-ex2013★ 86 cited

Analysis of the resonant components in B0->J/ψpi+pi-

LHCb collaboration, R. Aaij, C. Abellan Beteta +620

Interpretation of CP violation measurements using charmonium decays, in both the B0 and Bs systems, can be subject to changes due to "penguin" type diagrams. These effects can be i…

hep-ex2013★ 10 cited

Search for the decay Bs -> D*-+ π+-

LHCb collaboration, R. Aaij, C. Abellan Beteta +619

A search for the decay Bs -> D*-+ π+- is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expec…

hep-ex2013★ 136 cited

Exclusive $J / ψ$ and $ψ (2 S)$ production in $pp$ collisions at $s = 7$ TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +620

Exclusive $J / ψ$ and $ψ (2 S)$ vector meson production has been observed in the dimuon channel using the LHCb detector. The cross-section times branching fractions to two muons with p…

hep-ex2013★ 106 cited

Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +625

A measurement of the cross-section for pp->Z->e+e- is presented using data at sqrt{s}=7TeV corresponding to an integrated luminosity of 0.94 fb^{-1}. The process is measured within…

hep-ex2012★ 11 cited

First observation of the decays $B ˉ_{(s)}^{0} \to D_{s}^{+} K^{-} π^{+} π^{-}$ and $B ˉ_{s}^{0} \to D_{s 1} (2536)^{+} π^{-}$

LHCb collaboration, R. Aaij, C. Abellan Beteta +621

The first observation of the decays $B ˉ_{s}^{0} \to D_{s}^{+} K^{-} π^{+} π^{-}$ and $B ˉ^{0} \to D_{s}^{+} K^{-} π^{+} π^{-}$ are reported using an integrated luminosity of 1.0 fb $^{- 1}$ recorded by the…

hep-ex2012★ 46 cited

First observation of the decay $B^{+} \to π^{+} μ^{+} μ^{-}$

LHCb Collaboration, R. Aaij, C. Abellan Beteta +621

A discovery of the rare decay $B^{+} \to π^{+} μ^{+} μ^{-}$ is presented. This decay is observed for the first time, with 5.2 $σ$ significance. The observation is made usin…

hep-ex2012★ 22 cited

Search for the rare decay KS -> mu+ mu-

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

A search for the decay KS -> mu+ mu- is performed, based on a data sample of 1.0 fb^-1 of pp collisions at \sqrt{s}=7 TeV collected by the LHCb experiment at the Large Hadron Colli…

hep-ex2012★ 28 cited

Measurement of the fraction of \Y1S originating from \chib1P decays in $pp$ collisions at $\sqrt{s} = 7\tev$

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

The production of \chib1P mesons in $pp$ collisions at a centre-of-mass energy of $7\tev$ is studied using $32\invpb$ of data collected with the \lhcb detector. The $\chib1P$ meson…

hep-ex2012★ 26 cited

Measurement of the $B_{s}^{0} \to J / ψ K^{* 0}$ branching fraction and angular amplitudes

LHCb collaboration, R. Aaij, C. Abellan Beteta +616

A search for the decay $B_{s}^{0} \to J / ψ K^{* 0}$ with $K^{* 0} \to K^{-} π^{+}$ is performed with 0.37 fb $^{- 1}$ of $pp$ collisions at $s$ = 7 TeV collected by the LHCb…

Analysis of the resonant components in B0->J/ψpi+pi-

Search for the decay Bs -> D*-+ π+-

Exclusive J/ψ and ψ(2S) production in pp collisions at s​=7 TeV

Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV

First observation of the decays Bˉ(s)0​→Ds+​K−π+π− and Bˉs0​→Ds1​(2536)+π−

First observation of the decay B+→π+μ+μ−

Search for the rare decay KS -> mu+ mu-

Measurement of the fraction of \Y1S originating from \chib1P decays in pp collisions at $\sqrt{s} = 7\tev$

Measurement of the Bs0​→J/ψK∗0 branching fraction and angular amplitudes

Exclusive $J / ψ$ and $ψ (2 S)$ production in $pp$ collisions at $s = 7$ TeV

First observation of the decays $B ˉ_{(s)}^{0} \to D_{s}^{+} K^{-} π^{+} π^{-}$ and $B ˉ_{s}^{0} \to D_{s 1} (2536)^{+} π^{-}$

First observation of the decay $B^{+} \to π^{+} μ^{+} μ^{-}$

Measurement of the fraction of \Y1S originating from \chib1P decays in $pp$ collisions at $\sqrt{s} = 7\tev$

Measurement of the $B_{s}^{0} \to J / ψ K^{* 0}$ branching fraction and angular amplitudes