A. Weiden

activity

20152020

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 5.4k across the 85 of their papers we have counts for

collaborators

Showing 2015Show all

18 papers · 1 filter

hep-ex2015★ 58 cited

Production of associated $Υ$ and open charm hadrons in $pp$ collisions at $s = 7$ and $8$ TeV via double parton scattering

LHCb collaboration, R. Aaij, C. Abellán Beteta +724

Associated production of bottomonia and open charm hadrons in $pp$ collisions at $s = 7$ and $8$ TeV is observed using data corresponding to an integrated luminosity of 3$fb^{-…

hep-ex2015★ 9 cited

Search for the rare decays $B^{0} \to J / ψ γ$ and $B_{s}^{0} \to J / ψ γ$

LHCb collaboration, R. Aaij, C. Abellán Beteta +725

A search for the rare decay of a $B^{0}$ or $B_{s}^{0}$ meson into the final state $J / ψ γ$ is performed, using data collected by the LHCb experiment in $pp$ collisions at $\sqrt{s}=…

hep-ex2015★ 55 cited

Measurement of the forward-backward asymmetry in $Z / γ^{*} \to μ^{+} μ^{-}$ decays and determination of the effective weak mixing angle

LHCb collaboration, R. Aaij, B. Adeva +722

The forward-backward charge asymmetry for the process $q q ˉ \to Z / γ^{*} \to μ^{+} μ^{-}$ is measured as a function of the invariant mass of the dimuon system.…

hep-ex2015★ 49 cited

Forward production of $Υ$ mesons in $pp$ collisions at $s = 7$ and 8TeV

LHCb collaboration, R. Aaij, B. Adeva +720

The production of $Υ$ mesons in $pp$ collisions at $= 7$ and $8 TeV$ is studied with the LHCb detector using data samples corresponding to an integrated luminosity of…

hep-ex2015★ 27 cited

Measurement of $C P$ violation parameters and polarisation fractions in $B_{s}^{0} \to J / ψ K^{* 0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +721

The first measurement of $C P$ asymmetries in the decay $B_{s}^{0} \to J / ψ K^{*} (892)^{0}$ and an updated measurement of its branching fraction and polarisation fractions…

hep-ex2015★ 16 cited

Measurement of the $B_{s}^{0} \to ϕϕ$ branching fraction and search for the decay $B^{0} \to ϕϕ$

LHCb collaboration, R. Aaij, B. Adeva +724

Using a dataset corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ collected in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV, the $B_{s}^{0} \to ϕϕ$ branching frac…

hep-ex2015★ 1.3k cited

Observation of $J / ψ p$ resonances consistent with pentaquark states in $Λ_{b}^{0} \to J / ψ K^{-} p$ decays

LHCb collaboration, R. Aaij, B. Adeva +720

Observations of exotic structures in the $J / ψ p$ channel, that we refer to as pentaquark-charmonium states, in $Λ_{b}^{0} \to J / ψ K^{-} p$ decays are presented. The data sample corresponds…

hep-ex2015★ 25 cited

Measurement of the branching fraction ratio $B (B_{c}^{+} \to ψ (2 S) π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$

LHCb collaboration, R. Aaij, B. Adeva +721

Using $pp$ collision data collected by LHCb at center-of-mass energies $s$ = 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb $^{- 1}$ , the ratio of the bran…

hep-ex2015★ 17 cited

Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb

LHCb collaboration, R. Aaij, B. Adeva +701

A search is performed for heavy long-lived charged particles using 3.0 fb $^{- 1}$ of pp collisions collected at $s$ = 7 and 8 TeV with the LHCb detector. The search is mainly…

hep-ex2015★ 19 cited

Study of $B^{-} \to D K^{-} π^{+} π^{-}$ and $B^{-} \to D π^{-} π^{+} π^{-}$ decays and determination of the CKM angle $γ$

LHCb collaboration, R. Aaij, B. Adeva +716

We report a study of the suppressed $B^{-} \to D K^{-} π^{+} π^{-}$ and favored $B^{-} \to D π^{-} π^{+} π^{-}$ decays, where the neutral $D$ meson is detected through its decays to the $K^{\mp} π^{\pm}$ a…

hep-ex2015★ 45 cited

Study of $W$ boson production in association with beauty and charm

LHCb collaboration, R. Aaij, B. Adeva +722

The associated production of a $W$ boson with a jet originating from either a light parton or heavy-flavor quark is studied in the forward region using proton-proton collisions. Th…

hep-ex2015★ 50 cited

Amplitude analysis of $B^{0} \to D ˉ^{0} K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +716

The Dalitz plot distribution of $B^{0} \to D ˉ^{0} K^{+} π^{-}$ decays is studied using a data sample corresponding to $3.0 fb^{- 1}$ of $pp$ collision data recorded by the…

hep-ex2015★ 26 cited

A study of $C P$ violation in $B^{\mp} \to D h^{\mp}$ ( $h = K, π$ ) with the modes $D \to K^{\mp} π^{\pm} π^{0}$ , $D \to π^{+} π^{-} π^{0}$ and $D \to K^{+} K^{-} π^{0}$

LHCb collaboration, R. Aaij, B. Adeva +707

An analysis of the decays of $B^{\mp} \to D K^{\mp}$ and $B^{\mp} \to D π^{\mp}$ is presented in which the $D$ meson is reconstructed in the three-body final states $K^\mp…

hep-ex2015★ 178 cited

Determination of the quark coupling strength $∣ V_{u b} ∣$ using baryonic decays

LHCb collaboration, R. Aaij, B. Adeva +707

In the Standard Model of particle physics, the strength of the couplings of the $b$ quark to the $u$ and $c$ quarks, $∣ V_{u b} ∣$ and $∣ V_{c b} ∣$ , are governed by the coupling of the…

hep-ex2015★ 51 cited

Measurement of $C P$ violation in $B^{0} \to J / ψ K_{S}^{0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +704

Measurements are presented of the $C P$ violation observables $S$ and $C$ in the decays of $B^{0}$ and $B^{0}$ mesons to the $J / ψ K_{S}^{0}$ final state. The data sample corresp…

hep-ex2015★ 17 cited

First observation and measurement of the branching fraction for the decay $B_{s}^{0} \to D_{s}^{*\mp} K^{\pm}$

LHCb Collaboration, R. Aaij, B. Adeva +697

The first observation of the $B_{s}^{0} \to D_{s}^{*\mp} K^{\pm}$ decay is reported using 3.0 $f b^{- 1}$ of proton-proton collision data collected by the LHCb experiment. The $D_{s}^{*\mp}$ …

hep-ex2015★ 25 cited

Observation of the $B^{0} \to ρ^{0} ρ^{0}$ decay from an amplitude analysis of $B^{0} \to (π^{+} π^{-}) (π^{+} π^{-})$ decays

LHCb collaboration, R. Aaij, B. Adeva +699

Proton-proton collision data recorded in 2011 and 2012 by the \lhcb experiment, co\-rres\-pon\-ding to an integrated luminosity of 3.0\invfb, are a\-na\-lysed to search for the cha…

hep-ex2015★ 56 cited

Measurement of forward $Z \to e^{+} e^{-}$ production at $s = 8$ TeV

LHCb collaboration, R. Aaij, B. Adeva +700

A measurement of the cross-section for Z-boson production in the forward region of pp collisions at 8TeV centre-of-mass energy is presented. The measurement is based on a sample of…

Production of associated Υ and open charm hadrons in pp collisions at s​=7 and 8TeV via double parton scattering

Search for the rare decays B0→J/ψγ and Bs0​→J/ψγ

Measurement of the forward-backward asymmetry in Z/γ∗→μ+μ− decays and determination of the effective weak mixing angle

Forward production of Υ mesons in pp collisions at s​=7 and 8TeV

Measurement of CP violation parameters and polarisation fractions in Bs0​→J/ψK∗0 decays

Measurement of the Bs0​→ϕϕ branching fraction and search for the decay B0→ϕϕ

Observation of J/ψp resonances consistent with pentaquark states in Λb0​→J/ψK−p decays

Measurement of the branching fraction ratio B(Bc+​→ψ(2S)π+)/B(Bc+​→J/ψπ+)

Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb

Study of B−→DK−π+π− and B−→Dπ−π+π− decays and determination of the CKM angle γ

Study of W boson production in association with beauty and charm

Amplitude analysis of B0→Dˉ0K+π− decays

A study of CP violation in B∓→Dh∓ (h=K,π) with the modes D→K∓π±π0, D→π+π−π0 and D→K+K−π0

Determination of the quark coupling strength ∣Vub​∣ using baryonic decays

Measurement of CP violation in B0→J/ψKS0​ decays

First observation and measurement of the branching fraction for the decay Bs0​→Ds∗∓​K±

Observation of the B0→ρ0ρ0 decay from an amplitude analysis of B0→(π+π−)(π+π−) decays

Measurement of forward Z→e+e− production at s​=8TeV