B. Sanmartin Sedes

activity

20122020

most citedTest of lepton universality using

B^{+} \to K^{+} ℓ^{+} ℓ^{-}

decays

952 citations · 13.4k across the 209 of their papers we have counts for

collaborators

Showing 2012Show all

10 papers · 1 filter

hep-ex2012★ 44 cited

Evidence for the decay $B^{0} \to J / ψ ω$ and measurement of the relative branching fractions of $B_{s}^{0}$ meson decays to $J / ψ η$ and $J / ψ η^{^{'}}$

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

First evidence of the $B^{0} \to J / ψ ω$ decay is found and the $B_{s}^{0} \to J / ψ η$ and $B_{s}^{0} \to J / ψ η^{'}$ decays are studied using a dataset corresponding to an integrated lumino…

hep-ex2012★ 28 cited

Measurement of the $B^{0}$ -- $B ˉ^{0}$ oscillation frequency $Δ m_{d}$ with the decays $B^{0} \to D^{-} π^{+}$ and $B^{0} \to J / ψ K^{* 0}$

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

The $B^{0}$ -- $B ˉ^{0}$ oscillation frequency $Δ m_{d}$ is measured by the LHCb experiment using a dataset corresponding to an integrated luminosity of $1.0$ fb $^{- 1}$ of proton-proton…

hep-ex2012★ 39 cited

Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays

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

A measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays is presented, based on 1.0fb-1 of pp collision data recorded by the LHCb experiment during 2011. The measurement is pe…

hep-ex2012★ 76 cited

Measurement of the D+/- production asymmetry in 7 TeV pp collisions

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

The asymmetry in the production cross-section σof D+/- mesons, A_P = (σ(D+) - σ(D-))/(σ(D+) + σ(D-)), is measured in bins of pseudorapidity ηand transverse momentum p_T within the…

hep-ex2012★ 17 cited

First evidence for the annihilation decay mode $B^{+} \to D_{s}^{+} ϕ$

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

Evidence for the hadronic annihilation decay mode $B^{+} \to D_{s}^{+} ϕ$ is found with greater than $3 σ$ significance. The branching fraction and \CP asymmetry are measured to be \ma…

hep-ex2012★ 105 cited

Differential branching fraction and angular analysis of the $B^{+} \to K^{+} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, C. Abellan Beteta +617

The angular distribution and differential branching fraction of the decay $B^{+} \to K^{+} μ^{+} μ^{-}$ are studied with a dataset corresponding to $1.0 fb^{- 1}$ of…

hep-ex2012★ 21 cited

Measurement of the effective $B_{s}^{0} \to K^{+} K^{-}$ lifetime

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

A precise determination of the effective $B_{s}^{0} \to K^{+} K^{-}$ lifetime can be used to constrain contributions from physics beyond the Standard Model in the $B_{s}^{0}$ meson sys…

hep-ex2012★ 25 cited

Measurement of the Bs effective lifetime in the J/psi f0(980) final state

LHCb Collaboration, R. Aaij, C. Abellan Beteta +618

The effective lifetime of the Bs meson in the decay mode Bs->J/ψf0(980) is measured using 1.0/fb of data collected in pp collisions at sqrt(s) = 7 TeV with the LHCb detector. The r…

hep-ex2012★ 114 cited

Observation of excited Lambda_b0 baryons

LHCb collaboration, R. Aaij, C. Abellan Beteta +615

Using pp collision data corresponding to 1.0 fb-1 integrated luminosity collected by the LHCb detector, two narrow states are observed in the Lambda_b0pi+pi- spectrum with masses 5…

hep-ex2012★ 88 cited

Measurement of the isospin asymmetry in $B \to K^{(*)} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +615

The isospin asymmetries of $B \to K^{(*)} μ^{+} μ^{-}$ decays and the partial branching fractions of $B^{0} \to K^{0} μ^{+} μ^{-}$ and $B^{+} \to K^{*+} μ^{+} μ^{-}$ are measured as a function of the di-m…

Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of Bs0​ meson decays to J/ψη and J/ψη′

Measurement of the B0--Bˉ0 oscillation frequency Δmd​ with the decays B0→D−π+ and B0→J/ψK∗0