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Jun Yong Kim

Cette personne n’est plus à l’EPFL

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Publications associées (148)

Search for B+ -> e(+)nu(e) and B+ -> mu(+)nu(mu) decays using hadronic tagging

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

We present a search for the rare leptonic decays B+ -> e(+)nu(e) and B+ -> mu(+) nu(mu) using the full Upsilon(4S) data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One of the ...

American Physical Society2015

Search for the Dark Photon and the Dark Higgs Boson at Belle

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

The dark photon A' and the dark Higgs boson h' are hypothetical constituents featured in a number of recently proposed dark sector models. Assuming prompt decays of both dark particles, we search for their production in the so-called Higgstrahlung channel ...

Amer Physical Soc2015

Measurements of B -> (D)over-barDs0(+)(2317) decay rates and a search for isospin partners of the Ds0(+)(2317)

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

We report improved measurements of the product branching fractions B(B+ --> (D) over bar D-0(s0)(+)(2317)) x B(D-s0(+)(2317) --> D-s(+) pi(0)) (8.0(-1.2)(+1.3) +/- 1.1 +/- 0.4) x 10(-4) and B(B-0 --> D-Ds0*(+)(2317)) x B(D-s0*(+)(2317)) --> D-s(+) pi(0)) ...

American Physical Society2015

Observation of X(3872) in B -> X(3872)K pi decays

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

We report the first observation of B-0 -> X(3872)(K+pi(-)) and evidence for B+ -> X(3872)(K-0 pi(+)). We measure the product of branching fractions for the former to be B(B-0 -> X(3872)(K+pi(-)) x B(X(3872) -> J/psi pi(+)pi(-)) = (7.9 +/- 1.3(stat) +/- 0.4 ...

American Physical Society2015

Evidence for the decay B-0 -> eta pi(0)

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 search for the charmless hadronic decay B-0 -> eta pi(0) with a data sample corresponding to an integrated luminosity of 694 fb(-1) containing 753 x 10(6) BB pairs. The data were collected by the Belle experiment running on the Upsilon(4S) reso ...

American Physical Society2015

Measurement of the branching fraction of B+ -> tau(+)nu(tau) decays with the semileptonic tagging method

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 a measurement of the branching fraction of B+ -> tau(+) nu(tau) decays 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. We rec ...

American Physical Society2015

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

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

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

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