T. Nakada

activity

19932025

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 16.3k across the 189 of their papers we have counts for

collaborators

Showing 2015Show all

16 papers · 1 filter

hep-ex2015★ 30 cited

Evidence for the strangeness-changing weak decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$

LHCb collaboration, R. Aaij, C. Abellán Beteta +724

Using a $pp$ collision data sample corresponding to an integrated luminosity of 3.0~fb $^{- 1}$ , collected by the LHCb detector, we present the first search for the strangeness-chang…

hep-ex2015★ 46 cited

A model-independent confirmation of the $Z (4430)^{-}$ state

LHCb collaboration, R. Aaij, B. Adeva +723

The decay $B^{0} \to ψ (2 S) K^{+} π^{-}$ is analyzed using $3 f b^{- 1}$ of $pp$ collision data collected with the LHCb detector. A model-independent description of the $ψ (2 S) π$ mass spe…

hep-ex2015★ 175 cited

Measurements of prompt charm production cross-sections in $pp$ collisions at $s = 13 TeV$

LHCb collaboration, R. Aaij, C. Abellán Beteta +724

Production cross-sections of prompt charm mesons are measured with the first data from $pp$ collisions at the LHC at a centre-of-mass energy of $13 TeV$ . The data sample…

hep-ex2015★ 27 cited

Measurement of $C P$ violation parameters and polarisation fractions in $B_{s}^{0} \to J / ψ K^{* 0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +721

The first measurement of $C P$ asymmetries in the decay $B_{s}^{0} \to J / ψ K^{*} (892)^{0}$ and an updated measurement of its branching fraction and polarisation fractions…

hep-ex2015★ 157 cited

Search for hidden-sector bosons in $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +724

A search is presented for hidden-sector bosons, $χ$ , produced in the decay $B^{0} \to K^{*} (892)^{0} χ$ , with $K^{*} (892)^{0} \to K^{+} π^{-}$ and $χ \to μ^{+} μ^{-}$ . The search is performed u…

hep-ex2015★ 1.3k cited

Observation of $J / ψ p$ resonances consistent with pentaquark states in $Λ_{b}^{0} \to J / ψ K^{-} p$ decays

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

Observations of exotic structures in the $J / ψ p$ channel, that we refer to as pentaquark-charmonium states, in $Λ_{b}^{0} \to J / ψ K^{-} p$ decays are presented. The data sample corresponds…

hep-ex2015★ 35 cited

$B$ flavour tagging using charm decays at the LHCb experiment

LHCb collaboration, R. Aaij, B. Adeva +725

An algorithm is described for tagging the flavour content at production of neutral $B$ mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a $B$ …

hep-ex2015★ 313 cited

Angular analysis and differential branching fraction of the decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +722

An angular analysis and a measurement of the differential branching fraction of the decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ are presented, using data corresponding to an integrated luminosity of $…

hep-ex2015★ 6 cited

First observation of the decay $B_{s}^{0} \to K_{S}^{0} K^{*} (892)^{0}$

LHCb collaboration, R. Aaij, B. Adeva +713

A search for $B_{(s)}^{0} \to K_{S}^{0} K^{*} (892)^{0}$ decays is performed using $pp$ collision data, corresponding to an integrated luminosity of $1.0 fb^{- 1}$ , collected…

hep-ex2015★ 635 cited

Measurement of the ratio of branching fractions $B (B^{0} \to D^{+} τ^{-} ν_{τ}) / B (B^{0} \to D^{+} μ^{-} ν_{μ})$

LHCb collaboration, R. Aaij, B. Adeva +722

The branching fraction ratio $R (D^{*}) \equiv B (B^{0} \to D^{*+} τ^{-} ν_{τ}) / B (B^{0} \to D^{*+} μ^{-} ν_{μ})$ is measured…

hep-ex2015★ 19 cited

Study of $B^{-} \to D K^{-} π^{+} π^{-}$ and $B^{-} \to D π^{-} π^{+} π^{-}$ decays and determination of the CKM angle $γ$

LHCb collaboration, R. Aaij, B. Adeva +716

We report a study of the suppressed $B^{-} \to D K^{-} π^{+} π^{-}$ and favored $B^{-} \to D π^{-} π^{+} π^{-}$ decays, where the neutral $D$ meson is detected through its decays to the $K^{\mp} π^{\pm}$ a…

hep-ex2015★ 115 cited

Quantum numbers of the $X (3872)$ state and orbital angular momentum in its $ρ^{0} J ψ$ decay

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

Angular correlations in $B^{+} \to X (3872) K^{+}$ decays, with $X (3872) \to ρ^{0} J / ψ$ , $ρ^{0} \to π^{+} π^{-}$ and $J / ψ \to μ^{+} μ^{-}$ , are used to measure orbital angular momentum contributions and to…

hep-ex2015★ 51 cited

Measurement of $C P$ violation in $B^{0} \to J / ψ K_{S}^{0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +704

Measurements are presented of the $C P$ violation observables $S$ and $C$ in the decays of $B^{0}$ and $B^{0}$ mesons to the $J / ψ K_{S}^{0}$ final state. The data sample corresp…

hep-ex2015

Differential branching fraction and angular analysis of $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ decays

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

The differential branching fraction of the rare decay $Λ_{b}^{0} \to Λ μ^{+} μ^{-}$ is measured as a function of $q^{2}$ , the square of the dimuon invariant mass. The analysis is…

hep-ex2015★ 69 cited

First observation and amplitude analysis of the $B^{-} \to D^{+} K^{-} π^{-}$ decay

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

The $B^{-} \to D^{+} K^{-} π^{-}$ decay is observed in a data sample corresponding to $3.0 fb^{- 1}$ of $pp$ collision data recorded by the LHCb experiment during 2011 and 2012. I…

hep-ex2015★ 38 cited

Measurement of indirect $C P$ asymmetries in $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ decays using semileptonic $B$ decays

LHCb collaboration, R. Aaij, B. Adeva +707

Time-dependent $C P$ asymmetries in the decay rates of the singly Cabibbo-suppressed decays $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ are measured in $pp$ collision data c…

Evidence for the strangeness-changing weak decay Ξb−​→Λb0​π−

A model-independent confirmation of the Z(4430)− state

Measurements of prompt charm production cross-sections in pp collisions at s​=13TeV

Measurement of CP violation parameters and polarisation fractions in Bs0​→J/ψK∗0 decays

Search for hidden-sector bosons in B0→K∗0μ+μ− decays

Observation of J/ψp resonances consistent with pentaquark states in Λb0​→J/ψK−p decays

B flavour tagging using charm decays at the LHCb experiment

Angular analysis and differential branching fraction of the decay Bs0​→ϕμ+μ−

First observation of the decay Bs0​→KS0​K∗(892)0

Measurement of the ratio of branching fractions B(B0→D∗+τ−ντ​)/B(B0→D∗+μ−νμ​)

Study of B−→DK−π+π− and B−→Dπ−π+π− decays and determination of the CKM angle γ

Quantum numbers of the X(3872) state and orbital angular momentum in its ρ0Jψ decay

Measurement of CP violation in B0→J/ψKS0​ decays

Differential branching fraction and angular analysis of Λb0​→Λμ+μ− decays

First observation and amplitude analysis of the B−→D+K−π− decay

Measurement of indirect CP asymmetries in D0→K−K+ and D0→π−π+ decays using semileptonic B decays