L. Martin

activity

20082025

most citedObservation of the doubly charmed baryon

Ξ_{cc}^{++}

523 citations · 10.9k across the 273 of their papers we have counts for

collaborators

Showing 2013Show all

22 papers · 1 filter

hep-ex2013★ 20 cited

Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime

LHCb collaboration, R. Aaij, C. Abellan Beteta +630

This paper reports the first measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are pe…

hep-ex2013★ 34 cited

Measurement of the $B^{0} \to K^{* 0} e^{+} e^{-}$ branching fraction at low dilepton mass

LHCb collaboration, R. Aaij, C. Abellan Beteta +623

The branching fraction of the rate decay $B^{0} \to K^{* 0} e^{+} e^{-}$ in the dilepton mass region from 30 to 1000 MeV $/ c^{2}$ has been measured by the LHCb experiment, using $pp$ c…

hep-ex2013★ 96 cited

Precision measurement of the $B_{s}^{0}$ - $B ˉ_{s}^{0}$ oscillation frequency with the decay $B^{0}_{s}\rightarrowD^{-}_{s}π^{+}$

LHCb collaboration, R. Aaij, C. Abellan Beteta +622

A key ingredient to searches for physics beyond the Standard Model in $B_{s}^{0}$ mixing phenomena is the measurement of the $B_{s}^{0}$ - $B ˉ_{s}^{0}$ oscillation frequency, wh…

hep-ex2013★ 149 cited

First observation of CP violation in the decays of Bs mesons

LHCb collaboration, R. Aaij, C. Abellan Beteta +631

Using pp collision data, corresponding to an integrated luminosity of $1.0 fb^{- 1}$ , collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measureme…

hep-ex2013★ 91 cited

Observation of $B_{c}^{+} \to J / ψ D_{s}^{+}$ and $B_{c}^{+} \to J / ψ D_{s}^{*+}$ decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +623

The decays $B_{c}^{+} \to J / ψ D_{s}^{+}$ and $B_{c}^{+} \to J / ψ D_{s}^{*+}$ are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 $f b^{- 1}$ …

hep-ex2013★ 52 cited

Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

LHCb collaboration, R. Aaij, C. Abellan Beteta +630

Searches for the lepton flavour violating decay $τ^{-} \to μ^{-} μ^{+} μ^{-}$ and the lepton flavour and baryon number violating decays $τ^{-} \to p ˉ μ^{+} μ^{-}$ and $τ^-\rightar…

hep-ex2013★ 134 cited

Measurement of CP violation and the B_s^0 meson decay width difference with B_s^0\to J/ψK^+ K^- and B_s^0\to J/ψπ^+π^- decays

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

The time-dependent CP asymmetry in B_s^0\to J/ψK^+K^- decays is measured using $pp$ collision data at \sqrt{s}=7TeV, corresponding to an integrated luminosity of 1.0fb^-1, collecte…

hep-ex2013★ 14 cited

Study of B0 -> D- pi+ pi- pi+ and B0 -> D- K+ pi- pi+ decays

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

Using proton-proton collision data collected by the LHCb experiment at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 1.0 fb^{-1}, the ratio of branching fractions o…

hep-ex2013★ 59 cited

Observation of the decay $B_{c}^{+} \to ψ (2 S) π^{+}$

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

The decay $B_{c}^{+} \to ψ (2 S) π^{+}$ with $ψ (2 S) \to μ^{+} μ^{-}$ is observed with a significance of $5.2 σ$ using $pp$ collision data corresponding to an integrated luminosity of $1.0\,\inv…

hep-ex2013★ 35 cited

First measurement of the CP-violating phase in $B_{s}^{0} \to ϕϕ$ decays

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

A first flavour-tagged measurement of the time-dependent CP-violating asymmetry in $B_{s}^{0} \to ϕϕ$ decays is presented. In this decay channel, the CP-violating weak phase arises due…

hep-ex2013★ 23 cited

Search for rare $B_{(s)}^{0} \to μ^{+} μ^{-} μ^{+} μ^{-}$ decays

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

\noindent A search for the decays $B_{s}^{0} \to μ^{+} μ^{-} μ^{+} μ^{-}$ and $B^{0} \to μ^{+} μ^{-} μ^{+} μ^{-}$ is performed using data, corresponding to an integrated luminosity of 1…

hep-ex2013★ 27 cited

Observations of $B_{s}^{0} \to ψ (2 S) η$ and $B_{(s)}^{0} \to ψ (2 S) π^{+} π^{-}$ decays

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

First observations of the $B_{s}^{0} \to ψ (2 S) η$ , $B^{0} \to ψ (2 S) π^{+} π^{-}$ and $B_{s}^{0} \to ψ (2 S) π^{+} π^{-}$ decays are made using a dataset corresponding to an int…

hep-ex2013★ 415 cited

Determination of the X(3872) meson quantum numbers

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

The quantum numbers of the X(3872) meson are determined to be JPC = 1++ based on angular correlations in B+ to X(3872) K+ decays, where X(3872) to pi+pi- J/psi and J/psi to μ+μ-. T…

hep-ex2013★ 26 cited

First observations of $B ˉ_{s}^{0} \to D^{+} D^{-}$ , $D_{s}^{+} D^{-}$ and $D^{0} D ˉ^{0}$ decays

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

First observations and measurements of the branching fractions of the $B ˉ_{s}^{0} \to D^{+} D^{-}$ , $B ˉ_{s}^{0} \to D_{s}^{+} D^{-}$ and $B ˉ_{s}^{0} \to D^{0} D ˉ^{0}$ decays are presented usin…

hep-ex2013★ 179 cited

Prompt charm production in pp collisions at sqrt(s)=7 TeV

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

Charm production at the LHC in pp collisions at sqrt(s)=7 TeV is studied with the LHCb detector. The decays D0 -> K- pi+, D+ -> K- pi+ pi+, D*+ -> D0(K- pi+) pi+, D_s+ -> phi(K- K+…

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★ 97 cited

Measurement of the Λ_b^0, Ξ_b^- and Ω_b^- baryon masses

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

Bottom baryons decaying to a J/ψ meson and a hyperon are reconstructed using 1.0 fb^{-1} of data collected in 2011 with the LHCb detector. Significant Λ_b^0 \rightarrow J/ψΛ, Ξ_b^-…

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★ 81 cited

Measurements of the Lambda_b0 -> J/psi Lambda decay amplitudes and the Lambda_b0 polarisation in pp collisions at sqrt(s) = 7 TeV

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

An angular analysis of Lambda_b0 -> J/psi Lambda decays is performed using a data sample corresponding to 1.0 fb^{-1} collected in pp collisions at sqrt(s) = 7 TeV with the LHCb de…

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-ex2013★ 166 cited

Measurement of the fragmentation fraction ratio $f_{s} / f_{d}$ and its dependence on $B$ meson kinematics

LHCb collaboration, R. Aaij, C. Abellan Beteta +624

The relative production rate of $B_{s}^{0}$ and $B^{0}$ mesons is determined with the hadronic decays $B_{s}^{0} \to D_{s}^{-} π^{+}$ and $B^{0} \to D^{-} K^{+}$ . The m…

Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime

Measurement of the B0→K∗0e+e− branching fraction at low dilepton mass

Precision measurement of the Bs0​-Bˉs0​ oscillation frequency with the decay $B^{0}_{s}\rightarrowD^{-}_{s}π^{+}$

First observation of CP violation in the decays of Bs mesons

Observation of Bc+​→J/ψDs+​ and Bc+​→J/ψDs∗+​ decays

Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

Measurement of CP violation and the B_s^0 meson decay width difference with B_s^0\to J/ψK^+ K^- and B_s^0\to J/ψπ^+π^- decays

Study of B0 -> D*- pi+ pi- pi+ and B0 -> D*- K+ pi- pi+ decays

Observation of the decay Bc+​→ψ(2S)π+

First measurement of the CP-violating phase in Bs0​→ϕϕ decays

Search for rare B(s)0​→μ+μ−μ+μ− decays

Observations of Bs0​→ψ(2S)η and B(s)0​→ψ(2S)π+π− decays

Determination of the X(3872) meson quantum numbers

First observations of Bˉs0​→D+D−, Ds+​D− and D0Dˉ0 decays

Prompt charm production in pp collisions at sqrt(s)=7 TeV

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

Measurement of the Λ_b^0, Ξ_b^- and Ω_b^- baryon masses

Search for the decay Bs -> D*-+ π+-

Measurements of the Lambda_b0 -> J/psi Lambda decay amplitudes and the Lambda_b0 polarisation in pp collisions at sqrt(s) = 7 TeV

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

Measurement of the fragmentation fraction ratio fs​/fd​ and its dependence on B meson kinematics

Measurement of the $B^{0} \to K^{* 0} e^{+} e^{-}$ branching fraction at low dilepton mass

Precision measurement of the $B_{s}^{0}$ - $B ˉ_{s}^{0}$ oscillation frequency with the decay $B^{0}_{s}\rightarrowD^{-}_{s}π^{+}$

Observation of $B_{c}^{+} \to J / ψ D_{s}^{+}$ and $B_{c}^{+} \to J / ψ D_{s}^{*+}$ decays

Study of B0 -> D- pi+ pi- pi+ and B0 -> D- K+ pi- pi+ decays

Observation of the decay $B_{c}^{+} \to ψ (2 S) π^{+}$

First measurement of the CP-violating phase in $B_{s}^{0} \to ϕϕ$ decays

Search for rare $B_{(s)}^{0} \to μ^{+} μ^{-} μ^{+} μ^{-}$ decays

Observations of $B_{s}^{0} \to ψ (2 S) η$ and $B_{(s)}^{0} \to ψ (2 S) π^{+} π^{-}$ decays

First observations of $B ˉ_{s}^{0} \to D^{+} D^{-}$ , $D_{s}^{+} D^{-}$ and $D^{0} D ˉ^{0}$ decays

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

Measurement of the fragmentation fraction ratio $f_{s} / f_{d}$ and its dependence on $B$ meson kinematics