Y. J. Kim

activity

20062025

most citedObservation of two resonance-like structures in the pi+ chi_c1 mass distribution in exclusive B0-bar --> K- pi+ chi_c1 decays

229 citations · 1.7k across the 36 of their papers we have counts for

collaborators

36 papers

hep-ex2025

Improved measurement of Born cross sections for $χ_{b J} ω$ and $χ_{b J} (π^{+} π^{-} π^{0})_{non - ω}$ ( $J$ = 0, 1, 2) at Belle and Belle II

Belle, Belle II Collaborations, : +424

We study the processes $χ_{b J} ω$ and $χ_{b J} (π^{+} π^{-} π^{0})_{non - ω}$ ( $J$ = 0, 1, 2) at center-of-mass energies $s$ from 10.73 to 11.02 GeV using a $142.5\,\mathrm{fb}^{…

hep-ex2025

Measurements of the branching fractions of $Ξ_{c}^{+} \to Σ^{+} K_{S}^{0}$ , $Ξ_{c}^{+} \to Ξ^{0} π^{+}$ , and $Ξ_{c}^{+} \to Ξ^{0} K^{+}$ at Belle and Belle II

Belle, Belle II Collaborations, : +357

Using 983.0 $fb^{- 1}$ and 427.9 $fb^{- 1}$ data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy $e^{+} e^{-}$ colliders, res…

hep-ex2013★ 178 cited

Experimental constraints on the spin and parity of the Z(4430)+

Belle Collaboration, K. Chilikin, R. Mizuk +188

We perform a full amplitude analysis of B0 -> psi' K+ pi- decays, with psi' -> mu+ mu- or e+ e-, to constrain the spin and parity of the Z(4430)-. The J^P=1+ hypothesis is favored…

hep-ex2011★ 45 cited

Search for Lepton-number-violating B+->D-l+l'+ Decays

O. Seon, Y. J. Kwon, T. Iijima

We perform the first search for lepton-number-violating B+->D-l+l'+ decays, where l and l' stand for e or mu, using 772 x 10^6 BB-bar pairs accumulated at the Upsilon(4S) resonance…

hep-ex2010★ 37 cited

Measurement of the branching fractions and the invariant mass distributions for tau^- -> h^-h^+h^-nu_tau decays

M. J. Lee

We present a study of tau->pipipinu, tau->Kpipinu, tau->KKpinu, and tau->KKKnu decays using a 666 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e…

hep-ex2009★ 131 cited

Evidence for a new resonance and search for the Y(4140) in $γ γ \to ϕ J / ψ$

The Belle Collaboration, C. P. Shen

The process $γγ\to ϕ\jpsi$ is measured for $ϕ\jpsi$ masses between threshold and 5 GeV/ $c^{2}$ , using a data sample of 825 fb $^{- 1}$ collected with the Belle detector. A narrow…

hep-ex2009★ 43 cited

Measurement Of |V_ub| From Inclusive Charmless Semileptonic B Decays

The Belle Collaboration

We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the CKM matrix element |Vub|, using a multivariate analysis m…

hep-ex2009★ 8 cited

Measurement of cross sections of exclusive $e^{+} e^{-} \to V P$ processes at $s = 10.58$ GeV

K. Belous, M. Shapkin

The cross sections for the reactions $e^{+} e^{-} \to ϕ η, ϕ η^{'}, ρ η, ρ η^{'}$ have been measured using a data sample of 516 fb $^{- 1}$ collected with the Belle detector at th…

hep-ex2009★ 8 cited

Search for the X(1812) in $B^{\pm} \to K^{\pm} ω ϕ$

The Belle Collaboration, C. Liu, Z. P. Zhang

We report on a search for the X(1812) state in the decay $B^{\pm} \to K^{\pm} ω ϕ$ with a data sample of $657 \times 1 0^{6}$ $B B ˉ$ pairs collected with the Belle detector at the KE…

hep-ex2009★ 11 cited

Observation of the Doubly Cabibbo-Suppressed Decay $D_{s}^{+} \to K^{+} K^{+} π^{-}$

Belle Collaboration, B. R. Ko, E. Won

We report the first observation of the doubly Cabibbo-suppressed decay $D_{s}^{+} \to K^{+} K^{+} π^{-}$ using 605 fb $^{- 1}$ of data collected with the Belle detector at the KEKB asymmetric-ene…

hep-ex2009★ 5 cited

Evidence of time-dependent CP violation in the decay B0 to D+D-

K. Vervink, T. Aushev, O. Schneider

We report a measurement of the CP-odd fraction and the time-dependent CP violation in B0 to D*+D*- decays, using 657.10^6 BBbar events collected at the Upsilon(4S) resonance with t…

hep-ex2008★ 229 cited

Observation of two resonance-like structures in the pi+ chi_c1 mass distribution in exclusive B0-bar --> K- pi+ chi_c1 decays

R. Mizuk, R. Chistov

We report the first observation of two resonance-like structures in the pi+ chi_c1 invariant mass distribution near 4.1 GeV/c^2 in exclusive B0-bar --> K- pi+ chi_c1 decays. From a…

hep-ex2008★ 25 cited

Measurement of branching fractions, isospin and CP-violating asymmetries for exclusive \boldmath $b \to d γ$ modes

N. Taniguchi, M. Nakao, S. Nishida

We report new measurements of the decays $B \to ρ^{+} γ$ , $B \to ρ^{0} γ$ and $B \to ω γ$ using a data sample of $657 \times 1 0^{6}$ $B$ meson pairs accumulated with the Belle detector at t…

hep-ex2007★ 54 cited

Study of B -> D** l nu with full reconstruction tagging

Dmitri Liventsev

We report a study of semileptonic B decays to P-wave D** mesons. Semileptonic decay to D*_2 meson is observed for the first time and its product branching ratio is measured to be B…

hep-ex2007★ 34 cited

Observation of Ds1(2536)+ -> D+pi-K+ and angular decomposition of Ds1(2536)+ -> D*+K0S

Belle Collaboration

Using 462/fb of e+e- annihilation data recorded by the Belle detector, we report the first observation of the decay Ds1(2536)+ -> D+pi-K+. The ratio of branching fractions B(Ds1+ -…

hep-ex2007★ 13 cited

Time-Dependent {\boldmath $C P$ }-Violating Asymmetry in $B^{0} \to ρ^{0} γ$ Decays

Y. Ushiroda

We report the first measurement of CP-violation parameters in $B^{0} \to ρ^{0} γ$ decays based on a data sample of $657 \times 1 0^{6} B B ˉ$ pairs collected with the Belle detector at the…

hep-ex2007

Search for the CP-violating decays $Υ (4 S) B 0 B ˉ 0 J / K 0_{S} + J / ψ (η_{c}) K 0_{S}$

O. Tajima, M Hazumi

We report the first search for CP violating decays of the $Υ (4 S)$ using a data sample that contains 535 million $Υ (4 S)$ mesons with the Belle detector at the KEKB asymmetric-energy…

hep-ex2007★ 154 cited

Observation of a new D_sJ meson in B+->D0BD0K+ decays

J. Brodzicka, H. Palka

We report the observation of a new $D_{s J}$ meson produced in $B^{+} \to D ˉ^{0} D_{s J} \to D ˉ^{0} D^{0} K^{+}$ . This state has a mass of $M=2708 \pm 9 ^{+11}_{-10} \rm{Me…

hep-ex2007★ 60 cited

Search for B -> h(*) nu nubar Decays at Belle

K. -F. Chen

We present a search for the rare decays B -> h(*) nu nubar, where h(*) stands for a light meson. A data sample of 535 million BBbar pairs collected with the Belle detector at the K…

hep-ex2007★ 127 cited

Observation of B^0 \to D^{*-} τ^+ ν_τ decay at Belle

A. Matyja, M. Rozanska

We report an observation of the decay $B^{0} \to D^{*-} τ^{+} ν_{τ}$ in a data sample containing $535 \times 1 0^{6}$ $B B ˉ$ pairs collected with the Belle detector at the KEKB asymmetric-…

hep-ex2007★ 17 cited

Measurement of Branching Fraction and Time-Dependent CP Asymmetry Parameters in B0 -> D+ D- Ks Decays

J. Dalseno

We present a measurement of the branching fraction and time-dependent CP violation parameters for B0 -> D*+ D*- Ks decays. We also obtain an upper limit on the product branching fr…

hep-ex2007★ 13 cited

Observation of the Decay \bar{B0}-> Ds+ Lambda \bar{p}

T. Medvedeva, R. Chistov

We report the first observation of the decay \bar{B0} -> D_s^+ Lambda \bar{p} with a statistical significance of 6.6 sigma. We measure Br(\bar{B0} -> Ds+ Lambda \bar{p}) = (2.9 \pm…

hep-ex2007★ 39 cited

Search for Lepton Flavor Violating tau^- Decays into \ell^-η, \ell^-η' and \ell^-π^0

Y. Miyazaki

We have searched for lepton-flavor-violating $τ$ decays with a pseudoscalar meson ( $η$ , $η^{'}$ {and} $π^{0}$ ) using a data sample of 401 fb $^{- 1}$ collected with the Belle detector at…

quant-ph2007★ 62 cited

Measurement of EPR-type flavour entanglement in Upsilon(4S)->B0 B0bar decays

A. Go, A. Bay

The neutral B-meson pair produced at the Upsilon(4S) should exhibit a non-local correlation of the type discussed by Einstein, Podolski, and Rosen (EPR). We measure this correlatio…

Improved measurement of Born cross sections for χbJ​ω and χbJ​(π+π−π0)non−ω​ (J = 0, 1, 2) at Belle and Belle II

Measurements of the branching fractions of Ξc+​→Σ+KS0​, Ξc+​→Ξ0π+, and Ξc+​→Ξ0K+ at Belle and Belle II