G. Alkhazov

activity

20002024

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 35.4k across the 547 of their papers we have counts for

collaborators

Showing 2014Show all

58 papers · 1 filter

hep-ex2014★ 25 cited

Measurement of the inelastic $pp$ cross-section at a centre-of-mass energy of $s = 7$ TeV

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

The cross-section for inelastic proton-proton collisions, with at least one prompt long-lived charged particle of transverse momentum $p_{T} > 0.2$ GeV/ $c$ in the pseudorapidity…

hep-ex2014★ 1.1k cited

LHCb Detector Performance

LHCb collaboration, R. Aaij, B. Adeva +702

The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of bea…

hep-ex2014★ 13 cited

Measurement of the $W + b$ -jet and $W + c$ -jet differential production cross sections in $p p ˉ$ collisions at $s = 1.96$ TeV

D0 Collaboration

We present a measurement of the cross sections for the associated production of a $W$ boson with at least one heavy quark jet, $b$ or $c$ , in proton-antiproton collisions. Data cor…

hep-ex2014★ 52 cited

Search for long-lived particles decaying to jet pairs

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

A search is presented for long-lived particles with a mass between 25 and 50 GeV $/ c^{2}$ and a lifetime between 1 and 200 ps in a sample of proton-proton collisions at a centre-of-ma…

hep-ex2014★ 74 cited

Measurement of the electron charge asymmetry in $p p ˉ \to W + X \to eν + X$ decays in $p p ˉ$ collisions at $s = 1.96$ TeV

D0 Collaboration

We present a measurement of the electron charge asymmetry in $p p ˉ \to W + X \to e ν + X$ events at a center-of-mass energy of 1.96 TeV, using data corresponding to 9…

hep-ex2014★ 140 cited

Precision measurement of $C P$ violation in $B_{s}^{0} \to J / ψ K^{+} K^{-}$ decays

R. Aaij, B. Adeva, M. Adinolfi +696

The time-dependent $C P$ asymmetry in $B_{s}^{0} \to J / ψ K^{+} K^{-}$ decays is measured using $pp$ collision data, corresponding to an integrated luminosity of $3.0$ fb $^{- 1}$ , collected with…

hep-ex2014★ 25 cited

Study of $η - η^{'}$ mixing from measurement of $B_{(s)}^{0} \to J / ψ η^{(')}$ ~decay rates

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

A study of $B^{0}$ ~and $B_{s}^{0}$ meson decays into $J / ψ η$ ~and $J / ψ η^{'}$ final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7 and…

hep-ex2014★ 75 cited

Observation of two new $Ξ_{b}^{-}$ baryon resonances

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

Two structures are observed close to the kinematic threshold in the $Ξ_{b}^{0} π^{-}$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity…

hep-ex2014★ 81 cited

Measurement of $B_{c}^{+}$ production in proton-proton collisions at $s = 8$ TeV

LHCb collaboration, R. Aaij, B. Adeva +702

Production of $B_{c}^{+}$ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of $2.0 fb^{- 1}$ r…

hep-ex2014★ 21 cited

Measurement of the Z+b-jet cross-section in pp collisions at $s = 7 Te V$ in the forward region

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

The associated production of a Z boson or an off-shell photon $γ^{*}$ with a bottom quark in the forward region is studied using proton-proton collisions at a centre-of-mass energy o…

hep-ex2014★ 36 cited

Measurement of the $χ_{b} (3 P)$ mass and of the relative rate of $χ_{b 1} (1 P)$ and $χ_{b 2} (1 P)$ production

LHCb collaboration, R. Aaij, B. Adeva +696

The production of $χ_{b}$ mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of $s = 7$ and $8$ TeV and…

hep-ex2014★ 10 cited

Measurement of the $ϕ_{η}^{*}$ distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb $^{- 1}$ of $p p ˉ$ collisions

D0 Collaboration

We present a measurement of the distribution of the variable $ϕ_{η}^{*}$ for muon pairs with masses between 30 and 500 GeV, using the complete Run II data set collected by the D0 detec…

hep-ex2014★ 13 cited

Measurement of the $B_{s}^{0}$ lifetime in the flavor-specific decay channel $B_{s}^{0} \to D_{s}^{-} μ^{+} ν X$

D0 Collaboration

We present an updated measurement of the $B_{s}^{0}$ lifetime from the D0 collaboration using the semileptonic decays $B_{s}^{0} \to D_{s}^{-} μ^{+} ν X$ , with $D_{s}^{-} \to ϕ π^{-}$ and $ϕ\to K^+…

hep-ex2014★ 54 cited

Measurement of the semileptonic $C P$ asymmetry in $B^{0} - B^{0}$ mixing

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

The semileptonic $C P$ asymmetry in $B^{0} - B^{0}$ mixing, $a_{sl}^{d}$ , is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^…

hep-ex2014★ 46 cited

Precision measurement of the mass and lifetime of the Xi_b^- baryon

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

We report on measurements of the mass and lifetime of the Xi_b^- baryon using about 1800 Xi_b^- decays reconstructed in a proton-proton collision data set corresponding to an integ…

hep-ex2014★ 101 cited

Measurement of the $η_{c} (1 S)$ production cross-section in proton-proton collisions via the decay $η_{c} (1 S) \to p p ˉ$

LHCb collaboration, R. Aaij, C. Abellán Beteta +705

The production of the $η_{c} (1 S)$ state in proton-proton collisions is probed via its decay to the $p p ˉ$ final state with the LHCb detector, in the rapidity range $2.0 < y < 4…

hep-ex2014★ 6 cited

Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+

D0 Collaboration

We measure the direct CP-violating parameter A_CP for the decay of the charged charm meson, D+ -> K-pi+pi+ (and charge conjugate), using the full 10.4 fb-1 sample of ppbar collisio…

hep-ex2014★ 36 cited

First observation of a baryonic $B_{c}^{+}$ decay

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

A baryonic decay of the $B_{c}^{+}$ meson, $B_{c}^{+} \to J / ψ p p π^{+}$ , is observed for the first time, with a significance of $7.3$ standard deviations, in $pp$ collision data coll…

hep-ex2014★ 115 cited

Measurements of $C P$ violation in the three-body phase space of charmless $B^{\pm}$ decays

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

The charmless three-body decay modes $B^{\pm} \to K^{\pm} π^{+} π^{-}$ , $B^{\pm} \to K^{\pm} K^{+} K^{-}$ , $B^{\pm} \to π^{\pm} K^{+} K^{-}$ and $B^{\pm} \r…

hep-ex2014★ 30 cited

Determination of gamma and -2beta_s from charmless two-body decays of beauty mesons

LHCb collaboration, R. Aaij, C. Abellán Beteta +702

Using the latest LHCb measurements of time-dependent CP violation in the B^0_s -> K^+K^- decay, a U-spin relation between the decay amplitudes of B^0_s -> K^+K^- and B^0 -> π^+π^-…

hep-ex2014★ 64 cited

Measurement of the forward $W$ boson cross-section in $pp$ collisions at $s = 7 TeV$

LHCb collaboration, R. Aaij, B. Adeva +698

A measurement of the inclusive $W \to μν$ production cross-section using data from $pp$ collisions at a centre-of-mass energy of $s = 7 TeV$ is presented. The analy…

hep-ex2014★ 27 cited

Search for $C P$ violation using $T$ -odd correlations in $D^{0} \to K^{+} K^{-} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +702

A search for $C P$ violation using $T$ -odd correlations is performed using the four-body $D^{0} \to K^{+} K^{-} π^{+} π^{-}$ decay, selected from semileptonic $B$ decays. The data sample corresp…

hep-ex2014★ 14 cited

First observations of the rare decays $B^{+} - > K^{+} π^{+} π^{-} μ^{+} μ^{-}$ and $B^{+} - > ϕ K^{+} μ^{+} μ^{-}$

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

First observations of the rare decays $B^{+} \to K^{+} π^{+} π^{-} μ^{+} μ^{-}$ and $B^{+} \to ϕ K^{+} μ^{+} μ^{-}$ are presented using data corresponding to an integrated luminosity of $3.0\,{…

hep-ex2014★ 38 cited

Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV

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

The B0bar-B0 and Bsbar-Bs production asymmetries, AP(B0) and AP(Bs), are measured by means of a time-dependent analysis of B0 -> J/ψK*0, B0 -> D- pi+ and Bs -> Ds- pi+ decays, usin…

Measurement of the inelastic pp cross-section at a centre-of-mass energy of s​=7 TeV

LHCb Detector Performance

Measurement of the W+b-jet and W+c-jet differential production cross sections in ppˉ​ collisions at s​=1.96 TeV

Search for long-lived particles decaying to jet pairs

Measurement of the electron charge asymmetry in ppˉ​→W+X→eν+X decays in ppˉ​ collisions at s​=1.96 TeV

Precision measurement of CP violation in Bs0​→J/ψK+K− decays

Study of η−η′ mixing from measurement of B(s)0​→J/ψη(′)~decay rates

Observation of two new Ξb−​ baryon resonances

Measurement of Bc+​ production in proton-proton collisions at s​=8 TeV

Measurement of the Z+b-jet cross-section in pp collisions at s​=7TeV in the forward region

Measurement of the χb​(3P) mass and of the relative rate of χb1​(1P) and χb2​(1P) production

Measurement of the ϕη∗​ distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb−1 of ppˉ​ collisions

Measurement of the Bs0​ lifetime in the flavor-specific decay channel Bs0​→Ds−​μ+νX

Measurement of the semileptonic CP asymmetry in B0−B0 mixing

Precision measurement of the mass and lifetime of the Xi_b^- baryon

Measurement of the ηc​(1S) production cross-section in proton-proton collisions via the decay ηc​(1S)→ppˉ​

Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+

First observation of a baryonic Bc+​ decay

Measurements of CP violation in the three-body phase space of charmless B± decays

Determination of gamma and -2beta_s from charmless two-body decays of beauty mesons

Measurement of the forward W boson cross-section in pp collisions at s​=7TeV

Search for CP violation using T-odd correlations in D0→K+K−π+π− decays

First observations of the rare decays B+−>K+π+π−μ+μ− and B+−>ϕK+μ+μ−

Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV

Measurement of the inelastic $pp$ cross-section at a centre-of-mass energy of $s = 7$ TeV

Measurement of the $W + b$ -jet and $W + c$ -jet differential production cross sections in $p p ˉ$ collisions at $s = 1.96$ TeV

Measurement of the electron charge asymmetry in $p p ˉ \to W + X \to eν + X$ decays in $p p ˉ$ collisions at $s = 1.96$ TeV

Precision measurement of $C P$ violation in $B_{s}^{0} \to J / ψ K^{+} K^{-}$ decays

Study of $η - η^{'}$ mixing from measurement of $B_{(s)}^{0} \to J / ψ η^{(')}$ ~decay rates

Observation of two new $Ξ_{b}^{-}$ baryon resonances

Measurement of $B_{c}^{+}$ production in proton-proton collisions at $s = 8$ TeV

Measurement of the Z+b-jet cross-section in pp collisions at $s = 7 Te V$ in the forward region

Measurement of the $χ_{b} (3 P)$ mass and of the relative rate of $χ_{b 1} (1 P)$ and $χ_{b 2} (1 P)$ production

Measurement of the $ϕ_{η}^{*}$ distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb $^{- 1}$ of $p p ˉ$ collisions

Measurement of the $B_{s}^{0}$ lifetime in the flavor-specific decay channel $B_{s}^{0} \to D_{s}^{-} μ^{+} ν X$

Measurement of the semileptonic $C P$ asymmetry in $B^{0} - B^{0}$ mixing

Measurement of the $η_{c} (1 S)$ production cross-section in proton-proton collisions via the decay $η_{c} (1 S) \to p p ˉ$

First observation of a baryonic $B_{c}^{+}$ decay

Measurements of $C P$ violation in the three-body phase space of charmless $B^{\pm}$ decays

Measurement of the forward $W$ boson cross-section in $pp$ collisions at $s = 7 TeV$

Search for $C P$ violation using $T$ -odd correlations in $D^{0} \to K^{+} K^{-} π^{+} π^{-}$ decays

First observations of the rare decays $B^{+} - > K^{+} π^{+} π^{-} μ^{+} μ^{-}$ and $B^{+} - > ϕ K^{+} μ^{+} μ^{-}$