J. Yamaoka

activity

20102019

e^{+} e^{-} \to π^{+} π^{-} J / ψ

and Observation of a Charged Charmonium-like State at Belle

739 citations · 4.2k across the 78 of their papers we have counts for

collaborators

79 papers

hep-ex2019★ 236 cited

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

The Belle Collaboration, G. Caria, P. Urquijo +188

The experimental results on the ratios of branching fractions $R (D) = B (B ˉ \to D τ^{-} ν ˉ_{τ}) / B (B ˉ \to D ℓ^{-} ν ˉ_{ℓ})$ and $\mathcal{R}(D^…

hep-ex2019★ 68 cited

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

The Belle Collaboration, A. Abdesselam, I. Adachi +461

We report a measurement of the ratios of branching fractions $R (D) = B (B ˉ \to D τ^{-} ν ˉ_{τ}) / B (B ˉ \to D ℓ^{-} ν ˉ_{ℓ})$ and $\mathcal{R}(D^{…

hep-ex2018★ 112 cited

Measurement of the CKM Matrix Element $∣ V_{c b} ∣$ from $B^{0} \to D^{*-} ℓ^{+} ν_{ℓ}$ at Belle

E. Waheed, P. Urquijo, I. Adachi +184

We present a new measurement of the CKM matrix element $∣ V_{c b} ∣$ from $B^{0} \to D^{*-} ℓ^{+} ν_{ℓ}$ decays, reconstructed with the full Belle data set of $711 f b^{- 1}$ i…

hep-ex2017★ 36 cited

Precise determination of the CKM matrix element $∣ V_{c b} ∣$ with $B ˉ^{0} \to D^{* +} ℓ^{-} ν ˉ_{ℓ}$ decays with hadronic tagging at Belle

The Belle Collaboration, A. Abdesselam, I. Adachi +459

The precise determination of the CKM matrix element $∣ V_{c b} ∣$ is important for carrying out tests of the flavour sector of the Standard Model. In this article we prese…

hep-ex2016

Measurement of Michel Parameters ( $η ˉ$ , $ξ κ$ ) in the radiative leptonic decay of tau at Belle

The Belle Collaboration, A. Abdesselam, I. Adachi +445

We present the first measurement of the Michel parameters $η ˉ$ and $ξ κ$ in the radiative leptonic decay of the $τ$ lepton using 703 f $b^{- 1}$ of data collected with the…

hep-ex2016★ 14 cited

Measurement of $C P$ asymmetry in the $D^{0} \to K_{S}^{0} K_{S}^{0}$ decay at Belle

A. Abdesselam, I. Adachi, K. Adamczyk +447

We report a measurement of the time-integrated $C P$ asymmetry in the neutral charm meson decay $D^{0} \to K_{S}^{0} K_{S}^{0}$ using 921~fb $^{- 1}$ data collected at the $Υ (4 S)$ and $Υ (5 S)$ r…

hep-ex2016

Evidence for the decay $B^{0} \to η η$

A. Abdesselam, I. Adachi, K. Adamczyk +447

We report a search for $B^{0} \to η η$ with a data sample corresponding to an integrated luminosity of $698 fb^{- 1}$ containing $753 \times 1 0^{6}$ $B B ˉ$ pairs collected…

hep-ex2016★ 13 cited

Search for a dark vector gauge boson decaying to $π^{+} π^{-}$ using $η \to π^{+} π^{-} γ$ decays

E. Won, I. Adachi, H. Aihara +159

We report a search for a dark vector gauge boson $U^{'}$ that couples to quarks in the decay chain $D^{*+} \to D^{0} π^{+}, D^{0} \to K_{S}^{0} η, η \to U^{'} γ$ , $U^{'} \to π^{+} π^{-}$ …

hep-ex2016★ 26 cited

Measurement of the $τ$ lepton polarization in the decay $B ˉ \to D^{*} τ^{-} ν ˉ_{τ}$

A. Abdesselam, I. Adachi, K. Adamczyk +447

We report the first measurement of the $τ$ lepton polarization in the decay $B ˉ \to D^{*} τ^{-} ν ˉ_{τ}$ as well as a new measurement of the ratio of the branching frac…

hep-ex2016★ 10 cited

Measurement of the CKM angle $φ_{1}$ in $B^{0} \to D ˉ^{(*) 0} h^{0}$ , $D ˉ^{0} \to K_{S}^{0} π^{+} π^{-}$ decays with time-dependent binned Dalitz plot analysis

Belle Collaboration, V. Vorobyev, I. Adachi +163

We report a measurement of the CP violation parameter $φ_{1}$ obtained in a time-dependent analysis of $B^{0} \to D ˉ^{(*) 0} h^{0}$ decays followed by $D ˉ^{0} \to K_{S}^{0} π^{+} π^{-}$ dec…

hep-ex2016★ 362 cited

Measurement of the branching ratio of $B ˉ^{0} \to D^{+} τ^{-} ν ˉ_{τ}$ relative to $B ˉ^{0} \to D^{+} ℓ^{-} ν ˉ_{ℓ}$ decays with a semileptonic tagging method

Y. Sato, T. Iijima, K. Adamczyk +170

We report a measurement of the ratio $R (D^{*}) = B (B ˉ^{0} \to D^{*+} τ^{-} ν ˉ_{τ}) / B (B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ})$ , where $ℓ$ d…

hep-ex2016★ 3 cited

Study of χ_{bJ}(1P) Properties in the Radiative Υ(2S) Decays

A. Abdesselam, I. Adachi, K. Adamczyk +444

We report a study of radiative decays of χ_{bJ}(1P)(J=0,1,2) mesons into 74 hadronic final states comprising charged and neutral pions, kaons, protons; out of these, 41 modes are o…

hep-ex2016★ 46 cited

Studies of charmed strange baryons in the $Λ D$ final state at Belle

Y. Kato, T. Iijima, I. Adachi +172

We report the discovery of $Ξ_{c} (3055)^{0}$ , observed by its decay into the final state $Λ D^{0}$ , and present the first observation and evidence of the decays of $Ξ_{c} (3055)^{+}$ a…

hep-ex2016★ 7 cited

Search for $X Y Z$ states in $Υ (1 S)$ inclusive decays

Belle Collaboration, C. P. Shen, C. Z. Yuan +152

The branching fractions of the $Υ (1 S)$ inclusive decays into final states with a $J / ψ$ or a $ψ (2 S)$ are measured with improved precision to be $\BR(Υ(1S)\to J/ψ+ {\rm anything})=(5…

hep-ex2016★ 103 cited

Angular analysis of $B^{0} \to K^{*} (892)^{0} ℓ^{+} ℓ^{-}$

Belle Collaboration, A. Abdesselam, I. Adachi +442

We present a measurement of angular observables, $P_{4}^{'}$ , $P_{5}^{'}$ , $P_{6}^{'}$ , $P_{8}^{'}$ , in the decay $B^{0} \to K^{*} (892)^{0} ℓ^{+} ℓ^{-}$ , where $ℓ^{+} ℓ^{-}$ is either $e^{+} e^{-}$ or $μ^+…

hep-ex2016★ 4 cited

First observation of $γ γ \to p p ˉ K^{+} K^{-}$ and search for exotic baryons in $p K$ systems

Belle Collaboration, C. P. Shen, C. Z. Yuan +177

The process $γ γ \to p p ˉ K^{+} K^{-}$ and its intermediate processes are measured for the first time using a 980~fb $^{- 1}$ data sample collected with the Belle detector at the KEKB…

hep-ex2016★ 49 cited

Measurement of the branching ratio of $B ˉ^{0} \to D^{+} τ^{-} ν ˉ_{τ}$ relative to $B ˉ^{0} \to D^{+} ℓ^{-} ν ˉ_{ℓ}$ decays with a semileptonic tagging method

A. Abdesselam, I. Adachi, K. Adamczyk +441

We report a measurement of ratio $R (D^{*}) = B (B ˉ^{0} \to D^{*+} τ^{-} ν ˉ_{τ}) / B (B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ})$ , where $ℓ$ denot…

hep-ex2016★ 34 cited

Observation of $D^{0} \to ρ^{0} γ$ and search for $C P$ violation in radiative charm decays

Belle Collaboration, T. Nanut, A. Zupanc +156

We report the first observation of the radiative charm decay $D^{0} \to ρ^{0} γ$ and the first search for $C P$ violation in decays $D^{0} \to ρ^{0} γ$ , $ϕ γ$ , and $K^{* 0} γ$ , u…

hep-ex2015★ 86 cited

Study of e+e- => B() B()-bar pi+- at sqrt(s)=10.866 GeV

A. Garmash, A. Abdesselam, I. Adachi +158

We report the analysis of the three-body e+e- => B B-bar pi, B B*-bar pi, and B* B*-bar pi processes, including the first observation of the Zb+-(10610) =>[B B*-bar+c.c.]+- and Zb+…

hep-ex2015★ 43 cited

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: $Λ_{c}^{+} \to p K^{+} π^{-}$

Belle Collaboration, S. B. Yang, K. Tanida +190

We report the first observation of the decay $Λ_{c}^{+} \to p K^{+} π^{-}$ using a 980 $f b^{- 1}$ data sample collected by the Belle detector at the KEKB asymmetric…

hep-ex2015★ 4 cited

First Observation of the Decay B0->psi(2S)pi0

V. Chobanova, J. Dalseno, C. Kiesling +180

We report a measurement of the $B^{0} \to ψ (2 S) π^{0}$ branching fraction based on the full $Υ (4 S)$ data set of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected by the Belle detector…

hep-ex2015★ 28 cited

Inclusive and exclusive measurements of $B$ decays to $χ_{c 1}$ and $χ_{c 2}$ at Belle

V. Bhardwaj, K. Miyabayashi, E. Panzenböck +196

We report inclusive and exclusive measurements for $χ_{c 1}$ and $χ_{c 2}$ production in $B$ decays. We measure $B (B \to χ_{c 1} X)$ = $(3.03 \pm 0.05(\mbox{stat}) \pm 0.24(\…

hep-ex2015★ 19 cited

Observation of the decay $B_{s}^{0} \to K^{0} K^{0}$

Belle Collaboration, B. Pal, A. J. Schwartz +181

We measure the decay $B_{s}^{0} \to K^{0} K^{0}$ using data collected at the $Υ (5 S)$ resonance with the Belle detector at the KEKB $e^{+} e^{-}$ collider. The data sample used…

hep-ex2015★ 3 cited

Inclusive cross sections for pairs of identified light charged hadrons and for single protons in $e^{+} e^{-}$ at $s =$ 10.58 GeV

Belle Collaboration, R. Seidl, A. Abdesselam +172

We report the first double differential cross sections of two charged pions and kaons ( $e^{+} e^{-} \to hh X$ ) in electron-positron annihilation as a function of the fractional e…

Measurement of R(D) and R(D∗) with a semileptonic tagging method

Measurement of R(D) and R(D∗) with a semileptonic tagging method

Measurement of the CKM Matrix Element ∣Vcb​∣ from B0→D∗−ℓ+νℓ​ at Belle

Precise determination of the CKM matrix element ∣Vcb​∣ with Bˉ0→D∗+ℓ−νˉℓ​ decays with hadronic tagging at Belle

Measurement of Michel Parameters (ηˉ​, ξκ) in the radiative leptonic decay of tau at Belle

Measurement of CP asymmetry in the D0→KS0​KS0​ decay at Belle

Evidence for the decay B0→ηη

Search for a dark vector gauge boson decaying to π+π− using η→π+π−γ decays

Measurement of the τ lepton polarization in the decay Bˉ→D∗τ−νˉτ​

Measurement of the CKM angle φ1​ in B0→Dˉ(∗)0h0, Dˉ0→KS0​π+π− decays with time-dependent binned Dalitz plot analysis

Measurement of the branching ratio of Bˉ0→D∗+τ−νˉτ​ relative to Bˉ0→D∗+ℓ−νˉℓ​ decays with a semileptonic tagging method

Study of χ_{bJ}(1P) Properties in the Radiative Υ(2S) Decays

Studies of charmed strange baryons in the ΛD final state at Belle

Search for XYZ states in Υ(1S) inclusive decays

Angular analysis of B0→K∗(892)0ℓ+ℓ−

First observation of γγ→ppˉ​K+K− and search for exotic baryons in pK systems

Measurement of the branching ratio of Bˉ0→D∗+τ−νˉτ​ relative to Bˉ0→D∗+ℓ−νˉℓ​ decays with a semileptonic tagging method

Observation of D0→ρ0γ and search for CP violation in radiative charm decays

Study of e+e- => B(*) B(*)-bar pi+- at sqrt(s)=10.866 GeV

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λc+​→pK+π−

First Observation of the Decay B0->psi(2S)pi0

Inclusive and exclusive measurements of B decays to χc1​ and χc2​ at Belle

Observation of the decay Bs0​→K0K0

Inclusive cross sections for pairs of identified light charged hadrons and for single protons in e+e− at s​= 10.58 GeV

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

Measurement of the CKM Matrix Element $∣ V_{c b} ∣$ from $B^{0} \to D^{*-} ℓ^{+} ν_{ℓ}$ at Belle

Precise determination of the CKM matrix element $∣ V_{c b} ∣$ with $B ˉ^{0} \to D^{* +} ℓ^{-} ν ˉ_{ℓ}$ decays with hadronic tagging at Belle

Measurement of Michel Parameters ( $η ˉ$ , $ξ κ$ ) in the radiative leptonic decay of tau at Belle

Measurement of $C P$ asymmetry in the $D^{0} \to K_{S}^{0} K_{S}^{0}$ decay at Belle

Evidence for the decay $B^{0} \to η η$

Search for a dark vector gauge boson decaying to $π^{+} π^{-}$ using $η \to π^{+} π^{-} γ$ decays

Measurement of the $τ$ lepton polarization in the decay $B ˉ \to D^{*} τ^{-} ν ˉ_{τ}$

Measurement of the CKM angle $φ_{1}$ in $B^{0} \to D ˉ^{(*) 0} h^{0}$ , $D ˉ^{0} \to K_{S}^{0} π^{+} π^{-}$ decays with time-dependent binned Dalitz plot analysis

Measurement of the branching ratio of $B ˉ^{0} \to D^{+} τ^{-} ν ˉ_{τ}$ relative to $B ˉ^{0} \to D^{+} ℓ^{-} ν ˉ_{ℓ}$ decays with a semileptonic tagging method

Studies of charmed strange baryons in the $Λ D$ final state at Belle

Search for $X Y Z$ states in $Υ (1 S)$ inclusive decays

Angular analysis of $B^{0} \to K^{*} (892)^{0} ℓ^{+} ℓ^{-}$

First observation of $γ γ \to p p ˉ K^{+} K^{-}$ and search for exotic baryons in $p K$ systems

Measurement of the branching ratio of $B ˉ^{0} \to D^{+} τ^{-} ν ˉ_{τ}$ relative to $B ˉ^{0} \to D^{+} ℓ^{-} ν ˉ_{ℓ}$ decays with a semileptonic tagging method

Observation of $D^{0} \to ρ^{0} γ$ and search for $C P$ violation in radiative charm decays

Study of e+e- => B() B()-bar pi+- at sqrt(s)=10.866 GeV

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: $Λ_{c}^{+} \to p K^{+} π^{-}$

Inclusive and exclusive measurements of $B$ decays to $χ_{c 1}$ and $χ_{c 2}$ at Belle

Observation of the decay $B_{s}^{0} \to K^{0} K^{0}$

Inclusive cross sections for pairs of identified light charged hadrons and for single protons in $e^{+} e^{-}$ at $s =$ 10.58 GeV