O. A. Gutiérrez

activity

20092016

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 8.5k across the 78 of their papers we have counts for

collaborators

Showing 2016Show all

13 papers · 1 filter

hep-ex2016★ 33 cited

Measurement of the properties of the $Ξ_{b}^{* 0}$ baryon

LHCb collaboration, R. Aaij, C. Abellán Beteta +731

We perform a search for near-threshold $Ξ_{b}^{0}$ resonances decaying to $Ξ_{b}^{-} π^{+}$ in a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb$^{-1…

hep-ex2016★ 40 cited

Measurement of the $C P$ asymmetry in $B_{s}^{0} - B_{s}^{0}$ mixing

LHCb collaboration, R. Aaij, B. Adeva +735

The $C P$ asymmetry in the mixing of $B_{s}^{0}$ and $B_{s}^{0}$ mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ ,…

hep-ex2016★ 10 cited

Measurement of the CKM angle $γ$ using $B^{0} \to D K^{* 0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +716

A model-dependent amplitude analysis of the decay $B^{0} \to D (K_{S}^{0} π^{+} π^{-}) K^{* 0}$ is performed using proton-proton collision data corresponding to an integrated luminosity o…

hep-ex2016★ 35 cited

A precise measurement of the $B^{0}$ meson oscillation frequency

LHCb collaboration, R. Aaij, C. Abellán Beteta +730

The oscillation frequency, $Δ m_{d}$ , of $B^{0}$ mesons is measured using semileptonic decays with a $D^{-}$ or $D^{*-}$ meson in the final state, in a data sample of $pp$ collisions coll…

hep-ex2016★ 16 cited

Model-independent measurement of the CKM angle $γ$ using $B^{0} \to D K^{* 0}$ decays with $D \to K_{S}^{0} π^{+} π^{-}$ and $K_{S}^{0} K^{+} K^{-}$

R. Aaij, C. Abellán Beteta, B. Adeva +727

A binned Dalitz plot analysis of the decays $B^{0} \to D K^{* 0}$ , with $D \to K_{S}^{0} π^{+} π^{-}$ and $K_{S}^{0} K^{+} K^{-}$ , is performed to measure the observables $x_{\pm}$ …

hep-ex2016★ 30 cited

Observation of $Λ_{b}^{0} \to ψ (2 S) p K^{-}$ and $Λ_{b}^{0} \to J / ψ π^{+} π^{-} p K^{-}$ decays and a measurement of the $Λ_{b}^{0}$ baryon mass

LHCb collaboration, R. Aaij, C. Abellán Beteta +733

The decays $Λ_{b}^{0} \to ψ (2 S) p K^{-}$ and $Λ_{b}^{0} \to J / ψ π^{+} π^{-} p K^{-}$ are observed in a data sample corresponding to an integrated luminosity of 3fb $^{- 1}$ , collected in proton-proton…

hep-ex2016★ 42 cited

Search for violations of Lorentz invariance and $C P T$ symmetry in $B_{(s)}^{0}$ mixing

LHCb collaboration, R. Aaij, C. Abellán Beteta +729

Violations of $C P T$ symmetry and Lorentz invariance are searched for by studying interference effects in $B^{0}$ mixing and in $B_{s}^{0}$ mixing. Samples of $ B^0\to J/ψK^0_{\mathrm{…

hep-ex2016★ 17 cited

Study of $D_{s J}^{() +}$ mesons decaying to $D^{+} K_{S}^{0}$ and $D^{* 0} K^{+}$ final states

LHCb collaboration, R. Aaij, C. Abellán Beteta +730

A search is performed for $D_{s J}^{(*) +}$ mesons in the reactions $pp \to D^{*+} K_{S}^{0} X$ and $pp \to D^{* 0} K^{+} X$ using data collected at centre-of-mass energies of 7 and 8…

hep-ex2016★ 5 cited

Measurement of the $B_{s}^{0} \to D_{s}^{() +} D_{s}^{() -}$ branching fractions

LHCb collaboration, R. Aaij, C. Abellán Beteta +730

The branching fraction of the decay $B_{s}^{0} \to D_{s}^{(*) +} D_{s}^{(*) -}$ is measured using $pp$ collision data corresponding to an integrated luminosity of $1.0 f b^{- 1}$ …

hep-ex2016★ 26 cited

A new algorithm for identifying the flavour of $B_{s}^{0}$ mesons at LHCb

LHCb collaboration, R. Aaij, C. Abellán Beteta +732

A new algorithm for the determination of the initial flavour of $B_{s}^{0}$ mesons is presented. The algorithm is based on two neural networks and exploits the $b$ hadron production me…

hep-ex2016★ 35 cited

First observation of $D^{0} - D ˉ^{0}$ oscillations in $D^{0} \to K^{+} π^{-} π^{+} π^{-}$ decays and measurement of the associated coherence parameters

LHCb collaboration, R. Aaij, C. Abellán Beteta +733

Charm meson oscillations are observed in a time-dependent analysis of the ratio of $D^{0} \to K^{+} π^{-} π^{+} π^{-}$ to $D^{0} \to K^{-} π^{+} π^{-} π^{+}$ decay rates, using data corresponding to an integr…

nucl-ex2016★ 42 cited

Study of $ψ (2 S)$ production and cold nuclear matter effects in pPb collisions at $s_{N N} = 5 TeV$

LHCb collaboration, R. Aaij, C. Abellán Beteta +732

The production of $ψ (2 S)$ mesons is studied in dimuon final states using proton-lead collision data collected by the LHCb detector. The data sample corresponds to an integrated lum…

hep-ex2016★ 41 cited

Search for the lepton-flavour violating decay $D^{0} \to e^{\pm} μ^{\mp}$

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

A search for the lepton-flavour violating decay $D^{0} \to e^{\pm} μ^{\mp}$ is made with a dataset corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ of proton-proton collisions…

Measurement of the properties of the Ξb∗0​ baryon

Measurement of the CP asymmetry in Bs0​−Bs0​ mixing

Measurement of the CKM angle γ using B0→DK∗0 with D→KS0​π+π− decays

A precise measurement of the B0 meson oscillation frequency

Model-independent measurement of the CKM angle γ using B0→DK∗0 decays with D→KS0​π+π− and KS0​K+K−

Observation of Λb0​→ψ(2S)pK− and Λb0​→J/ψπ+π−pK− decays and a measurement of the Λb0​ baryon mass

Search for violations of Lorentz invariance and CPT symmetry in B(s)0​ mixing

Study of DsJ(∗)+​ mesons decaying to D∗+KS0​ and D∗0K+ final states

Measurement of the Bs0​→Ds(∗)+​Ds(∗)−​ branching fractions

A new algorithm for identifying the flavour of Bs0​ mesons at LHCb

First observation of D0−Dˉ0 oscillations in D0→K+π−π+π− decays and measurement of the associated coherence parameters

Study of ψ(2S) production and cold nuclear matter effects in pPb collisions at sNN​​=5 TeV

Search for the lepton-flavour violating decay D0→e±μ∓

Measurement of the properties of the $Ξ_{b}^{* 0}$ baryon

Measurement of the $C P$ asymmetry in $B_{s}^{0} - B_{s}^{0}$ mixing

Measurement of the CKM angle $γ$ using $B^{0} \to D K^{* 0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays

A precise measurement of the $B^{0}$ meson oscillation frequency

Model-independent measurement of the CKM angle $γ$ using $B^{0} \to D K^{* 0}$ decays with $D \to K_{S}^{0} π^{+} π^{-}$ and $K_{S}^{0} K^{+} K^{-}$

Observation of $Λ_{b}^{0} \to ψ (2 S) p K^{-}$ and $Λ_{b}^{0} \to J / ψ π^{+} π^{-} p K^{-}$ decays and a measurement of the $Λ_{b}^{0}$ baryon mass

Search for violations of Lorentz invariance and $C P T$ symmetry in $B_{(s)}^{0}$ mixing

Study of $D_{s J}^{() +}$ mesons decaying to $D^{+} K_{S}^{0}$ and $D^{* 0} K^{+}$ final states

Measurement of the $B_{s}^{0} \to D_{s}^{() +} D_{s}^{() -}$ branching fractions

A new algorithm for identifying the flavour of $B_{s}^{0}$ mesons at LHCb

First observation of $D^{0} - D ˉ^{0}$ oscillations in $D^{0} \to K^{+} π^{-} π^{+} π^{-}$ decays and measurement of the associated coherence parameters

Study of $ψ (2 S)$ production and cold nuclear matter effects in pPb collisions at $s_{N N} = 5 TeV$

Search for the lepton-flavour violating decay $D^{0} \to e^{\pm} μ^{\mp}$