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Donghyun Kim

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Related publications (221)

Measurement of the Direct CP Asymmetry in over-bar & RARR; gamma; Decays with a Lepton Tag

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li

We report the measurement of the direct CP asymmetry in the radiative (B) over bar -> Xs+d gamma decay using a data sample of (772 +/- 11) x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-en ...

Amer Physical Soc2015

Measurement of e(+)e(-) -> gamma chi(cJ) via initial state radiation at Belle

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Dipanwita Dutta, Jun Yong Kim, Donghyun Kim, Ji Hyun Kim, Xiao Wang

The process e(+)e(-) -> gamma chi(cJ) (J = 1, 2) is studied via initial state radiation using 980 fb(-1) of data at and around the Gamma(nS) (n = 1, 2, 3, 4, 5) resonances collected with the Belle detector at the KEKB asymmetricenergy e(+)e(-) collider. No ...

American Physical Society2015

First Observation of CP Violation in (B)over-bar(0) -> D(CP)((*))h(0) Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data

François Bianchi, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Gerhard Raven, Mingkui Wang, Liang Sun, Chao Wang, Songmei Wu, Greig Alan Cowan, Dipanwita Dutta, Jun Yong Kim, John Wilson, Tara Nanut, Donghyun Kim, Ji Hyun Kim

We report a measurement of the time-dependent CP asymmetry of (B) over bar (0) -> D(CP)((*))h(0) decays, where the light neutral hadron h(0) is a pi(0), eta , or omega meson, and the neutral D meson is reconstructed in the CP eigenstates K+K-, K-S(0)pi(0) ...

Amer Physical Soc2015

Inclusive cross sections for pairs of identified light charged hadrons and for single protons in e(+)e(-) at root s=10.58 GeV

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim

We report the first double differential cross sections of two charged pions and kaons (e(+)e(-) -> hhX) in electron-positron annihilation as a function of the fractional energies of the two hadrons for any charge and hadron combination. The dependence of t ...

American Physical Society2015

Search for B-s(0) -> gamma gamma and a measurement of the branching fraction for B-s(0) -> phi gamma

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li

We search for the decay B-s(0) -> gamma gamma and measure the branching fraction for B-s(0) -> phi gamma using 121.4 fb(-1) of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. The B-s(0) ...

American Physical Society2015

Measurement of e(+)e(-) -> pi(+)pi(-)psi(2S) via initial state radiation at Belle

Olivier Schneider, Sun Hee Kim, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang

We report measurement of the cross section of e(+)e(-) -> pi(+)pi(-)psi(2S) between 4.0 and 5.5 GeV, based on an analysis of initial state radiation events in a 980 fb(-1) data sample recorded with the Belle detector. The properties of the Y(4360) and Y(46 ...

American Physical Society2015

Measurement of the (B)over-bar -> X-s gamma branching fraction with a sum of exclusive decays

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang

We use 772 x 10(6) B (B) over bar meson pairs collected at the gamma(4S) resonance with the Belle detector to measure the branching fraction for (B) over bar -> X-s gamma Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final s ...

American Physical Society2015

Semi-inclusive studies of semileptonic B-s decays at Belle

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang

We present an analysis of the semi-inclusive decays B-s -> D(s)(-)Xl(+)nu and B-s -> D-s*(-)Xl(+)nu, where X denotes a final state that may consist of additional hadrons or photons and l is an electron or muon. The studied Bs decays are contained in the 12 ...

American Physical Society2015

Search for the decay B+ -> (K)over-barK-0(+) at Belle

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li

We report a search for the rare charmless decay B+ -> (K) over barK-0(+) using a data sample of 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. No statistica ...

American Physical Society2015

Search for B+ -> l(+)nu(l)gamma decays with hadronic tagging using the full Belle data sample

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Xiao Wang

We search for the decay B+ -> l(+)nu(l)gamma with l(+) = e(+) or mu(+) using the full Belle data set of 772 x 10(6) B (B) over bar pairs, collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We reconstru ...

American Physical Society2015

Measurement of B-0 -> (Ds-KS0)pi(+) and B+ -> Ds-K+K+ branching fractions

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li

We report a measurement of the B-0 and B+ meson decays to the (Ds-KS0)pi(+) and Ds-K+K+ final states, respectively, using 657 x 10(6)B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) co ...

American Physical Society2015

Effects of central electron cyclotron power on plasma rotation and on triggerless onset of NTMs in the TCV tokamak

Basil Duval, Olivier Sauter, Holger Reimerdes, Jonathan Rossel, Alexander Karpushov, Duccio Testa, Lucia Isabel Federspiel, Dávid Wágner, Doohyun Kim, Donghyun Kim

Experiments on the TCV tokamak show that high power central electron cyclotron heating (ECH) and current drive (ECCD) produce significant direct modification of the plasma rotation profile, as well as the effect on the equilibrium current density. These ef ...

IOP Publishing Ltd2015

Amplitude analysis of e(+)e(-) -> Upsilon(nS)pi(+)pi(-) at root s=10.866 GeV

Olivier Schneider, Tagir Aushev, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang

We report results on studies of the e(+)e(-) annihilation into three-body Upsilon(nS)pi(+)pi(-) (n = 1, 2, 3) final states including measurements of cross sections and the full amplitude analysis. The cross sections measured at root s = 10.866 GeV and corr ...

American Physical Society2015

Measurement of the branching ratio of (B)over-bar -> D-(())tau(-)(nu)over-bar(tau) relative to (B)over-bar -> D()l(-)(nu)over-bar(l) decays with hadronic tagging at Belle

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang

We report a measurement of the branching fraction ratios R(D)(()()) of (B) over bar -> D-(())tau(-)(nu) over bar (tau) relative to (B) over bar -> D-(*())l(-)(nu) over barl (where l = e or mu) using the full Belle data sample of 772 x 10(6)B (B) over bar ...

American Physical Society2015

First Observation of the Hadronic Transition Upsilon(4S) -> eta h(b)(1P) and New Measurement of the h(b)(1P) and eta(b)(1S) Parameters

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Xiao Wang

Using a sample of 771.6 x 10(6) Upsilon Upsilon(4S) decays collected by the Belle experiment at the KEKB e(+)e(-) collider, we observe, for the first time, the transition Upsilon(4S) -> eta h(b)(1P) with the branching fraction B[Upsilon(4S) -> eta h(b)(1P) ...

Amer Physical Soc2015

Study of D** production and light hadronic states in the (B)over-bar(0) -> D*(+)omega pi(-) decay

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim

We report on the first observations of (B) over bar (0) -> D-1 (2430)(0)omega, (B) over bar (0) -> D-1 (2420)(0)omega, and (B) over bar (0) -> D-2* (2460)(0)omega decays. The (B) over bar (0) -> D*(+) rho(1450)(-) decay is also observed. The branching frac ...

American Physical Society2015

Measurement of the Branching Fraction B(Lambda(+)(c) -> pK(-)pi(+))

Olivier Schneider, Tagir Aushev, Chao Wang, Dipanwita Dutta, Jun Yong Kim, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang, Jing Li

We present the first model-independent measurement of the absolute branching fraction of the Lambda(+)(c) -> pK(-)pi(+)decay using a data sample of 978 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The number of ...

Amer Physical Soc2014

Observation of the decay B-0 -> eta ' K* (892)(0)

Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Tara Nanut, Donghyun Kim, Ji Hyun Kim, Yiming Li, Xiao Wang, Jing Li

We report a search for charmless hadronic decays of neutral B mesons to eta ' K* (892)(0). The results are based on a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs, collected at the gamma(4S) resonance with the Belle detector at the ...

American Physical Society2014

On the non-stiffness of edge transport in L-mode tokamak plasmas

Stephan Brunner, Roland Behn, Basil Duval, Timothy Goodman, Olivier Sauter, Stefano Coda, Alexander Karpushov, Yann Camenen, Lucia Isabel Federspiel, Doohyun Kim, Gabriele Merlo, Antoine Pierre Emmanuel Alexis Merle, Donghyun Kim

Transport analyses using first-principle turbulence codes and 11/2-D transport codes usually study radial transport properties between the tokamak plasma magnetic axis and a normalized minor radius around 0.8. In this region, heat transport shows significa ...

Amer Inst Physics2014

Study of B-0 -> rho(0)rho(0) decays, implications for the CKM angle phi(2) and search for other B-0 decay modes with a four-pion final state

Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Donghyun Kim, Ji Hyun Kim, Xiao Wang, Jing Li

We present a study of the branching fraction of the decay B-0 -> rho(0)rho(0) and the fraction of longitudinally polarized rho(0) mesons in this decay. The results are obtained from the final data sample containing 772 x 10(6) B (B) over bar pairs collecte ...

American Physical Society2014

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