A. Kosmyntseva

activity

20162018

most citedTest of Lepton Flavor Universality by the measurement of the

B^{0} \to D^{*-} τ^{+} ν_{τ}

branching fraction using three-prong

τ

decays

312 citations · 2.1k across the 26 of their papers we have counts for

collaborators

Showing 2017Show all

16 papers · 1 filter

hep-ex2017★ 20 cited

First measurement of the $C P$ -violating phase $ϕ_{s}^{d d}$ in $B_{s}^{0} \to (K^{+} π^{-}) (K^{-} π^{+})$ decays

LHCb collaboration, R. Aaij, B. Adeva +793

A flavour-tagged decay-time-dependent amplitude analysis of $B_{s}^{0} \to (K^{+} π^{-}) (K^{-} π^{+})$ decays is presented in the $K^{\pm} π^{\mp}$ mass range from 750 to 1600 MeV $/ c^{2}$ . The analys…

hep-ex2017★ 35 cited

Evidence for the rare decay $Σ^{+} \to p μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +791

A search for the rare decay $Σ^{+} \to p μ^{+} μ^{-}$ is performed using $pp$ collision data recorded by the LHCb experiment at centre-of-mass energies $s = 7$ and $8$ TeV, corres…

hep-ex2017★ 280 cited

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to J / ψ τ^{+} ν_{τ})$ / $B (B_{c}^{+} \to J / ψ μ^{+} ν_{μ})$

LHCb collaboration, R. Aaij, B. Adeva +797

A measurement is reported of the ratio of branching fractions $R (J / ψ) = B (B_{c}^{+} \to J / ψ τ^{+} ν_{τ}) / B (B_{c}^{+} \to J / ψ μ^{+} ν_{μ})$ , where the $τ^{+}$ lepton is id…

hep-ex2017★ 18 cited

Measurement of branching fractions of charmless four-body $Λ_{b}^{0}$ and $Ξ_{b}^{0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +794

A search for charmless four-body decays of $Λ_{b}^{0}$ and $Ξ_{b}^{0}$ baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The d…

hep-ex2017★ 312 cited

Test of Lepton Flavor Universality by the measurement of the $B^{0} \to D^{*-} τ^{+} ν_{τ}$ branching fraction using three-prong $τ$ decays

LHCb collaboration, R. Aaij, B. Adeva +806

The ratio of branching fractions $R (D^{*-}) \equiv B (B^{0} \to D^{*-} τ^{+} ν_{τ}) / B (B^{0} \to D^{*-} μ^{+} ν_{μ})$ is measured using a data sample of proton-proton colli…

hep-ex2017★ 20 cited

Measurements of the branching fractions of $Λ_{c}^{+} \to p π^{-} π^{+}$ , $Λ_{c}^{+} \to p K^{-} K^{+}$ , and $Λ_{c}^{+} \to p π^{-} K^{+}$

LHCb collaboration, R. Aaij, B. Adeva +804

The ratios of the branching fractions of the decays $Λ_{c}^{+} \to p π^{-} π^{+}$ , $Λ_{c}^{+} \to p K^{-} K^{+}$ , and $Λ_{c}^{+} \to p π^{-} K^{+}$ with res…

hep-ex2017★ 14 cited

Measurement of $C P$ observables in $B^{\pm} \to D K^{*\pm}$ decays using two- and four-body $D$ final states

LHCb collaboration, R. Aaij, B. Adeva +799

Measurements of $C P$ observables in $B^{\pm} \to D K^{*\pm}$ decays are presented, where $D$ denotes a superposition of $D^{0}$ and $D^{0}$ meson states. Decays of t…

hep-ex2017★ 14 cited

First observation of the rare purely baryonic decay $B^{0} \to p p ˉ$

LHCb collaboration, R. Aaij, B. Adeva +802

The first observation of the decay of a $B^{0}$ meson to a purely baryonic final state, $B^{0} \to p p ˉ$ , is reported. The proton-proton collision data sample used was collected w…

hep-ex2017★ 81 cited

Prompt and nonprompt J/ $ψ$ production and nuclear modification in $p$ Pb collisions at $s_{NN} = 8.16$ TeV

LHCb collaboration, R. Aaij, B. Adeva +806

The production of J/ $ψ$ mesons is studied in proton-lead collisions at the centre-of-mass energy per nucleon pair $s_{NN} = 8.16$ TeV with the LHCb detector at the LHC.…

hep-ex2017★ 13 cited

First observation of a baryonic $B_{s}^{0}$ decay

LHCb collaboration, R. Aaij, B. Adeva +776

We report the first observation of a baryonic $B_{s}^{0}$ decay, $B_{s}^{0} \to p Λ K^{-}$ , using proton-proton collision data recorded by the LHCb experime…

hep-ex2017★ 248 cited

Measurement of the $B_{s}^{0} \to μ^{+} μ^{-}$ branching fraction and effective lifetime and search for $B^{0} \to μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +771

A search for the rare decays $B_{s}^{0} \to μ^{+} μ^{-}$ and $B^{0} \to μ^{+} μ^{-}$ is performed at the LHCb experiment using data collected in $pp$ collisions corresponding to a total integrated lum…

hep-ex2017★ 304 cited

Observation of five new narrow $Ω_{c}^{0}$ states decaying to $Ξ_{c}^{+} K^{-}$

LHCb collaboration, R. Aaij, B. Adeva +772

The $Ξ_{c}^{+} K^{-}$ mass spectrum is studied with a sample of $pp$ collision data corresponding to an integrated luminosity of 3.3 fb $^{- 1}$ , collected by the LHCb experiment. The $Ξ_c…

hep-ex2017★ 26 cited

Observation of the decay $Λ_{b}^{0} \to p K^{-} μ^{+} μ^{-}$ and a search for $C P$ violation

LHCb collaboration, R. Aaij, B. Adeva +763

A search for $C P$ violation in the decay $Λ_{b}^{0} \to p K^{-} μ^{+} μ^{-}$ is presented. This decay is mediated by flavour-changing neutral-current transitions in the Standard Model and…

hep-ex2017★ 32 cited

Measurement of the $C P$ violation parameter $A_{Γ}$ in $D^{0} \to K^{+} K^{-}$ and $D^{0} \to π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +769

Asymmetries in the time-dependent rates of $D^{0} \to K^{+} K^{-}$ and $D^{0} \to π^{+} π^{-}$ decays are measured in a $pp$ collision data sample collected with the LHCb detector during LHC Run…

hep-ex2017★ 82 cited

Study of the $D^{0} p$ amplitude in $Λ_{b}^{0} \to D^{0} p π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

An amplitude analysis of the decay $Λ_{b}^{0} \to D^{0} p π^{-}$ is performed in the part of the phase space containing resonances in the $D^{0} p$ channel. The study is based on a data sampl…

hep-ex2017★ 25 cited

Observation of the $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ decay

LHCb collaboration, R. Aaij, B. Adeva +764

The observation of the decay $Ξ_{b}^{-} \to J / ψ Λ K^{-}$ is reported, using a data sample corresponding to an integrated luminosity of $3 fb^{- 1}$ , collected b…

First measurement of the CP-violating phase ϕsdd​ in Bs0​→(K+π−)(K−π+) decays

Evidence for the rare decay Σ+→pμ+μ−

Measurement of the ratio of branching fractions B(Bc+​→J/ψτ+ντ​)/B(Bc+​→J/ψμ+νμ​)

Measurement of branching fractions of charmless four-body Λb0​ and Ξb0​ decays

Test of Lepton Flavor Universality by the measurement of the B0→D∗−τ+ντ​ branching fraction using three-prong τ decays

Measurements of the branching fractions of Λc+​→pπ−π+, Λc+​→pK−K+, and Λc+​→pπ−K+

Measurement of CP observables in B±→DK∗± decays using two- and four-body D final states

First observation of the rare purely baryonic decay B0→ppˉ​

Prompt and nonprompt J/ψ production and nuclear modification in pPb collisions at sNN​​=8.16 TeV

First observation of a baryonic Bs0​ decay

Measurement of the Bs0​→μ+μ− branching fraction and effective lifetime and search for B0→μ+μ− decays

Observation of five new narrow Ωc0​ states decaying to Ξc+​K−

Observation of the decay Λb0​→pK−μ+μ− and a search for CP violation

Measurement of the CP violation parameter AΓ​ in D0→K+K− and D0→π+π− decays

Study of the D0p amplitude in Λb0​→D0pπ− decays

Observation of the Ξb−​→J/ψΛK− decay