HyangKyu Park

activity

20042021

most citedHigh-Statistics Study of the tau^- -> pi^- pi^0 nu_tau Decay

207 citations · 1.4k across the 37 of their papers we have counts for

collaborators

37 papers

hep-ph2021★ 1 cited

Comments on bosonic super-WIMPs search experiments

Young Ju Ko, HyangKyu Park

Bosonic super-WIMPs, including pseudoscalar and vector particles, are dark matter candidates. Until now, many underground experiments searches for super-WIMPs have been performed i…

hep-ex2020★ 5 cited

Search for $B^{0}$ Decays to Invisible Final States ( $+ γ$ ) at Belle

Belle Collaboration, Y. Ku, P. Chang +153

We report searches for $B^{0} \to invisible$ and $B^{0} \to invisible + γ$ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained…

hep-ex2018★ 7 cited

Measurement of the branching fraction of $B \to D^{(*)} π ℓ ν$ at Belle using hadronic tagging in fully reconstructed events

A. Vossen, I. Adachi, K. Adamczyk +157

We report a measurement of the branching fraction of the decay $B \to D^{(*)} π ℓ ν$ . The analysis uses 772 $\times 1 0^{6}$ $B B ˉ$ pairs produced in $e^+e^-\rightarrow Υ(4…

hep-ex2017★ 21 cited

Search for $B^{-} \to μ^{-} ν ˉ_{μ}$ Decays at the Belle Experiment

Belle Collaboration, A. Sibidanov, K. E. Varvell +184

We report the result of a search for the decay $B^{-} \to μ^{-} ν ˉ_{μ}$ . The signal events are selected based on the presence of a high momentum muon and the topology of the rest of…

hep-ex2017★ 98 cited

Observation of Excited $Ω_{c}$ Charmed Baryons in $e^{+} e^{-}$ Collisions

Belle Collaboration, J. Yelton, I. Adachi +177

Using the entire Belle data sample of 980 $fb^{- 1}$ of $e^{+} e^{-}$ collisions, we present the results of a study of excited $Ω_{c}$ charmed baryons in the decay mode $Ξ_{c}^{+} K^{-}$ . W…

hep-ex2017★ 35 cited

Production cross sections of hyperons and charmed baryons from $e^{+} e^{-}$ annihilation near $s = 10.52$ ~GeV

Belle Collaboration, M. Niiyama, M. Sumihama +167

We measure the inclusive production cross sections of hyperons and charmed baryons from $e^{+} e^{-}$ annihilation using a 800 fb $^{- 1}$ data sample taken near the $Υ (4 S)$ resonance wit…

hep-ph2017★ 22 cited

Detecting Dark Photon with Reactor Neutrino Experiments

HyangKyu Park

We propose to search for light $U (1)$ dark photons, $A^{'}$ , produced via kinetically mixing with ordinary photons via the Compton-like process, $γ e^{-} \to A^{'} e^{-}$ , in a nuclea…

physics.ins-det2015★ 6 cited

Development and Mass Production of a Mixture of LAB- and DIN-based Gadolinium-loaded Liquid Scintillator for the NEOS Short-baseline Neutrino Experiment

Ba Ro Kim, Boyoung Han, Eun-ju Jeon +16

A new experiment, which is called as NEOS (NEutrino Oscillation at Short baseline), is proposed on the site of Hanbit reactors at Yonggwang, South Korea, to investigate a reactor a…

hep-ex2015★ 14 cited

Study of $D^{**}$ production and light hadronic states in the $B ˉ^{0} \to D^{*+} ω π^{-}$ decay

Belle Collaboration, D. Matvienko, A. Kuzmin +162

We report on the first observations of $B ˉ^{0} \to D_{1} (2430)^{0} ω$ , $B ˉ^{0} \to D_{1} (2420)^{0} ω$ and $B ˉ^{0} \to D_{2}^{*} (2460)^{0} ω$ decays. The $B ˉ^{0} \to D^{*+} ρ (1450)^{-}$ …

hep-ex2015★ 7 cited

Search for the decay $B^{+} \to K^{* 0} K^{*+}$ at Belle

Belle Collaboration, Y. M. Goh, Y. Unno +131

We report a search for the rare charmless decay $B^{+} \to K^{* 0} K^{*+}$ using a data sample of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected at the $Υ (4 S)$ resonance…

hep-ex2014★ 53 cited

Observation of $e^{+} e^{-} \to π^{+} π^{-} π^{0} χ_{b J}$ and search for $X_{b} \to ω Υ (1 S)$ at $s \sim 10.867$ GeV

Belle Collaboration, X. H. He, C. P. Shen +158

The $e^{+} e^{-} \to π^{+} π^{-} π^{0} χ_{b J}$ ( $J = 0, 1, 2$ ) processes are studied using a 118~fb $^{- 1}$ data sample collected at a center-of-mass energy of 10.867 GeV, in the $Υ (10860)$ ener…

hep-ex2013★ 17 cited

Measurement of branching fractions for B \to J/ψηK decays and search for a narrow resonance in the J/ψηfinal state

Belle Collaboration, T. Iwashita, K. Miyabayashi +178

We report an observation of the $B^{\pm} \to J / ψ η K^{\pm}$ and $B^{0} \to J / ψ η K_{S}^{0}$ decays using 772 $\times 1 0^{6}$ $B B ˉ$ pairs collected at the $Υ (4 S)$ resonance with the Belle…

hep-ex2013★ 5 cited

Measurement of the Wrong-Sign Decay D0 -> K+ pi- pi+ pi-

Belle Collaboration, E. White, A. J. Schwartz +170

A measurement of the rate for the "wrong-sign" decay D0 -> K+ pi- pi+ pi- relative to that for the "right-sign" decay D0 -> K- pi+ pi+ pi- is presented. Using 791 fb-1 of data coll…

hep-ex2013★ 13 cited

Evidence for the decay B0 --> K+K-pi0

The Belle Collaboration, V. Gaur, G. B. Mohanty +168

We report a search for charmless hadronic decays of neutral B mesons to the final state K+K-pi0. The results are based on a 711 fb^-1 data sample that contains 772x10^6 BB-bar pair…

hep-ex2013★ 54 cited

Search for an H-dibaryon with mass near 2m_Lambda in Y(1S) and Y(2S) decays

B. H. Kim, S. L. Olsen, the Belle Collaboration

We report the results of a high-statistics search for H-dibaryon production in inclusive Y(1S) and Y(2S) decays. No indication of an H-dibaryon with mass near the M_H=2m_Lambda thr…

hep-ex2012★ 14 cited

Measurement of the inclusive semileptonic branching fraction $B (B_{s}^{0} \to X^{-} ℓ^{+} ν_{ℓ})$ at Belle

Belle Collaboration, C. Oswald, P. Urquijo +172

We report a measurement of the inclusive semileptonic $B_{s}^{0}$ branching fraction in a $121 f b^{- 1}$ data sample collected near the $Υ (5 S)$ resonance with the Belle detector at the…

hep-ex2012★ 72 cited

Measurements of Branching Fractions and Direct CP Asymmetries for B -> K pi, B->pi pi and B->to KK Decays

Y. -T. Duh, T. -Y. Wu, P. Chang +140

We report measurements of the branching fractions and direct CP asymmetries (A_{CP}) for B->K pi, pi pi and KK decays (but not pi^0 pi^0) based on the final data sample of 772x10^6…

hep-ex2012★ 7 cited

Evidence for B- -> Ds+ K- l- nubar and search for B- -> Ds*+ K- l- nubar

Belle Collaboration, J. Stypula, M. Rozanska +165

We report measurements of the decays B- -> Ds(*)+ K- l- nubar in a data sample containing 657x10^6 BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e-…

hep-ex2012★ 20 cited

First study of η_c, η(1760) and X(1835) production via η'π^+π^- final states in two-photon collisions

Belle Collaboration, C. C. Zhang, H. Aihara +101

The invariant mass spectrum of the η' π^+ π^- final state produced in two-photon collisions is obtained using a 673 fb^{-1} data sample collected in the vicinity of the Υ(4S) reson…

hep-ex2012★ 17 cited

Search for $B^{0}$ decays to invisible final states at Belle

Belle Collaboration, C. -L. Hsu, P. Chang +154

We report a search for $B^{0}$ decays into invisible final states using a data sample of $657 \times 1 0^{6}$ $B B ˉ$ pairs collected at the $Υ (4 S)$ resonance with the Belle dete…

hep-ex2012★ 80 cited

Evidence for the eta_b(2S) and observation of h_b(1P) -> eta_b(1S) gamma and h_b(2P) -> eta_b(1S) gamma

Belle Collaboration, R. Mizuk, D. M. Asner +171

We report the first evidence for the eta_b(2S) using the h_b(2P)->eta_b(2S)gamma transition and the first observation of the h_b(1P)->eta_b(1S)gamma and h_b(2P)->eta_b(1S)gamma tra…

hep-ex2012★ 9 cited

First observation of exclusive $Υ (1 S)$ and $Υ (2 S)$ decays into light hadrons

Belle Collaboration, C. P. Shen, C. Z. Yuan +153

Using samples of 102 million $Υ (1 S)$ and 158 million $Υ (2 S)$ events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the…

hep-ex2012★ 57 cited

First Measurement of phi_3 with a Model-independent Dalitz Plot Analysis of B->DK, D->KsPiPi Decay

Belle collaboration, H. Aihara, K. Arinstein +159

We present the first measurement of the angle phi_3 of the Unitarity Triangle using a model-independent Dalitz plot analysis of B->DK, D->KsPiPi decays. The method uses an input me…

hep-ex2011★ 23 cited

The estimation of neutrino fluxes produced by proton-proton collisions at $s = 14$ TeV of the LHC

HyangKyu Park

Intense and collimated neutrino beams are produced by charm and beauty particle decays from proton-proton collisions at the LHC. A neutrino experiment would be run parasitically wi…

Comments on bosonic super-WIMPs search experiments

Search for B0 Decays to Invisible Final States (+γ) at Belle

Measurement of the branching fraction of B→D(∗)πℓν at Belle using hadronic tagging in fully reconstructed events

Search for B−→μ−νˉμ​ Decays at the Belle Experiment

Observation of Excited Ωc​ Charmed Baryons in e+e− Collisions

Production cross sections of hyperons and charmed baryons from e+e− annihilation near s​=10.52~GeV

Detecting Dark Photon with Reactor Neutrino Experiments

Development and Mass Production of a Mixture of LAB- and DIN-based Gadolinium-loaded Liquid Scintillator for the NEOS Short-baseline Neutrino Experiment

Study of D∗∗ production and light hadronic states in the Bˉ0→D∗+ωπ− decay

Search for the decay B+→K∗0K∗+ at Belle

Observation of e+e−→π+π−π0χbJ​ and search for Xb​→ωΥ(1S) at s​∼10.867 GeV

Measurement of branching fractions for B \to J/ψηK decays and search for a narrow resonance in the J/ψηfinal state

Measurement of the Wrong-Sign Decay D0 -> K+ pi- pi+ pi-

Evidence for the decay B0 --> K+K-pi0

Search for an H-dibaryon with mass near 2m_Lambda in Y(1S) and Y(2S) decays

Measurement of the inclusive semileptonic branching fraction B(Bs0​→X−ℓ+νℓ​) at Belle

Measurements of Branching Fractions and Direct CP Asymmetries for B -> K pi, B->pi pi and B->to KK Decays

Evidence for B- -> Ds+ K- l- nubar and search for B- -> Ds*+ K- l- nubar

First study of η_c, η(1760) and X(1835) production via η'π^+π^- final states in two-photon collisions

Search for B0 decays to invisible final states at Belle

Evidence for the eta_b(2S) and observation of h_b(1P) -> eta_b(1S) gamma and h_b(2P) -> eta_b(1S) gamma

First observation of exclusive Υ(1S) and Υ(2S) decays into light hadrons

First Measurement of phi_3 with a Model-independent Dalitz Plot Analysis of B->DK, D->KsPiPi Decay

The estimation of neutrino fluxes produced by proton-proton collisions at s​=14 TeV of the LHC

Search for $B^{0}$ Decays to Invisible Final States ( $+ γ$ ) at Belle

Measurement of the branching fraction of $B \to D^{(*)} π ℓ ν$ at Belle using hadronic tagging in fully reconstructed events

Search for $B^{-} \to μ^{-} ν ˉ_{μ}$ Decays at the Belle Experiment

Observation of Excited $Ω_{c}$ Charmed Baryons in $e^{+} e^{-}$ Collisions

Production cross sections of hyperons and charmed baryons from $e^{+} e^{-}$ annihilation near $s = 10.52$ ~GeV

Study of $D^{**}$ production and light hadronic states in the $B ˉ^{0} \to D^{*+} ω π^{-}$ decay

Search for the decay $B^{+} \to K^{* 0} K^{*+}$ at Belle

Observation of $e^{+} e^{-} \to π^{+} π^{-} π^{0} χ_{b J}$ and search for $X_{b} \to ω Υ (1 S)$ at $s \sim 10.867$ GeV

Measurement of the inclusive semileptonic branching fraction $B (B_{s}^{0} \to X^{-} ℓ^{+} ν_{ℓ})$ at Belle

Search for $B^{0}$ decays to invisible final states at Belle

First observation of exclusive $Υ (1 S)$ and $Υ (2 S)$ decays into light hadrons

The estimation of neutrino fluxes produced by proton-proton collisions at $s = 14$ TeV of the LHC