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Ji Hyun Kim

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Related publications (279)

Search for CP-violating charge asymmetry in B-+/- -> J/psi K-+/- decays

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We present the result of a search for charge asymmetry in B-+/- -> J/psi K-+/- decays using 772 X 10(6) B (B) over bar pairs collected at the Y(4S) resonance by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The CP-violating charge asy ...

American Physical Society2010

Observation of Bs0→Ds-π+ and Bs0→Ds() -ρ+ and measurement of the Bs0→Ds*-ρ+ longitudinal polarization fraction

Jean Wicht, Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

First observations of the Bs0→Ds*-π+, Bs0→Ds-ρ+ and Bs0→Ds*-ρ+ decays are reported together with measurements of their branching fractions: B(Bs0→Ds*-π+)=[2.4-0.4+0.5(stat)±0.3(syst) ±0.4(fs)]×10-3, B(Bs0→Ds-ρ+)=[8.5-1. 2+1.3(stat)±1.1(syst)±1.3(fs)]×10-3 ...

2010

Measurement of B→Ds(*)Kπ branching fractions

Aurelio Bay, Remi Léandre Albert Louvot, Nicolas Zwahlen, Olivier Schneider, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim

We report a measurement of the exclusive B+ meson decay to the D-s(()K-)(+)pi(+) final state 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(-) collider. We use D-s - ...

American Physical Society2009

A measurement of coherent neutral pion production in neutrino neutral current interactions in the NOMAD experiment

Minh Tâm Tran, Jean-Pierre Meyer, Ji Hyun Kim

We present a study of exclusive neutral pion production in neutrino-nucleus Neutral Current interactions using data from the NOMAD experiment at the CERN SPS. The data correspond to 1.44 × 106 muon-neutrino Charged Current interactions in the energy range ...

2009

Measurement of D^{+}→K_{S}^{0}K^{+} and D_{s}^{+}→K_{S}^{0}π^{+} branching ratios

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We report an improved measurement of D+->(KSK+)-K-0 and D-s(+)-> K-S(0)pi(+) branching ratios using 605 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured branching ratios with respect to the Cabi ...

American Physical Society2009

Dalitz analysis of B→Kπ+ψ′ decays and the Z(4430)

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Xiao Wang

From a Dalitz plot analysis of B→Kπ+ψ′ decays, we find a signal for Z(4430)+→π+ψ′ with a mass M=(4443-12-13+15+19)MeV/ c2, width Γ=(107-43-56+86+74)MeV, product branching fraction B(B̄0→K-Z(4430)+)×B(Z(4430)+→π+ψ′)=(3.2-0.9-1. 6+1.8+5.3)×10-5, and signific ...

American Physical Society2009

Measurement of the e+e-→D0D*-π+ cross section using initial-state radiation

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Vladislav Balagura, Thomas Muller, Ji Hyun Kim, Xiao Wang, Jing Li

We report measurements of the exclusive cross section for e(+)e(-)->(DD*-)-D-0 pi(+) as a function of center-of-mass energy from the (DD*-)-D-0 pi(+) threshold to 5.2 GeV with initial-state radiation. No evidence is found for Y(4260)->(DD*-)-D-0 pi(+) deca ...

American Physical Society2009

Measurement of cross sections of exclusive e+ e- → V P processes at sqrt(s) = 10.58 GeV

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Chao Wang, Vladislav Balagura, Ji Hyun Kim

The cross sections for the reactions e+ e- → φ{symbol} η, φ{symbol} η′, ρη, ρ η′ have been measured using a data sample of 516 fb- 1 collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. The corresponding values of the cross secti ...

2009

Observation of the Φ (1680) and the Y(2175) in e+e-→Φ π+π

Remi Léandre Albert Louvot, Olivier Schneider, Mingkui Wang, Chao Wang, Ji Hyun Kim, Xiao Wang, Jing Li

The cross sections for e+e-→Φ π+π- and e+e-→Φ f0(980) are measured from threshold to s=3.0GeV using initial-state radiation. The analysis is based on a data sample of 673fb-1 collected on and below the Υ(4S) resonance with the Belle detector at the KEKB as ...

American Physical Society2009

Measurements of charmless hadronic b→s penguin decays in the π+π-K+π- final state and first observation of B0→ρ0K+π-

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim, Jing Li

We report measurements of charmless hadronic B0 decays into the π+π-K+π- final state. The analysis uses a sample of 657×106 BB̄ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at the resonance. The decay B0→ρ0K+π- is obs ...

American Physical Society2009

High-statistics study of ηπ0 production in two-photon collisions

Remi Léandre Albert Louvot, Olivier Schneider, Chao Wang, Ji Hyun Kim, Jing Li

The differential cross section for the process γγ→η π0 has been measured in the kinematic range 0.84GeV

American Physical Society2009

A study of quasi-elastic muon neutrino and antineutrino scattering in the NOMAD experiment

Minh Tâm Tran, Jean-Pierre Meyer, Ji Hyun Kim

2009

Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector

Eduardo Sanchez, Horst Vogel, Aurelio Bay, Yu Lei, Jian Zhao, Liang Sun, Qian Wang, Zhirui Xu, Matthias Weber, Ji Hyun Kim, Werner Lustermann, Xiao Wang, Yifei Guo, Xuan Yang, Zheng Wang

Context. Primary cosmic rays experience multiple deflections in the non-uniform galactic and heliospheric magnetic fields which may generate anisotropies. Aims. A study of anisotropies in the energy range between 100 and 500 GeV is performed. This energy r ...

2008

Search for B→πℓ+ℓ- decays at Belle

Jean Wicht, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Ji Hyun Kim

We present a search for the decays B+→π+ℓ+ℓ- and B0→π0ℓ+ℓ-, where ℓ+ℓ- is either a μ+μ- or e+e- pair, with a data sample of 657×106 BB̄ pairs collected with the Belle detector at the KEKB e+e- collider. Signal events are reconstructed from a charged or a n ...

American Physical Society2008

Transport analysis of multi-phase H-mode shot at TCV

Stefano Alberti, Yves Martin, Olivier Sauter, Laurie Porte, Emiliano Fable, Ji Hyun Kim

2007

ETG modelling of a TCV multi-phase H-mode shot

Stefano Alberti, Yves Martin, Olivier Sauter, Laurie Porte, Emiliano Fable, Ji Hyun Kim

2007

Study of inclusive strange-baryon production and search for pentaquarks in two-photon collisions at LEP

Eduardo Sanchez, Horst Vogel, Aurelio Bay, Jian Zhao, Liang Sun, Qian Wang, Zhirui Xu, Matthias Weber, Ji Hyun Kim, Werner Lustermann, Xiao Wang, Zheng Wang

2007

Search for lepton and baryon number violating τ- decays into Λ̄π- and Λπ-

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Stewart Cole, Chao Wang, Vladislav Balagura, Lei Zhang, Ji Hyun Kim

We have searched for τ lepton decays, τ-→Λ̄π- and τ-→Λπ-, that simultaneously violate the conservation of the lepton (L) and baryon (B) number using a data sample of 154 fb-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. No ...

2006

Analysis of the π+ π- π+ π- and π+ π0 π- π0 final states in quasi-real two-photon collisions at LEP

Eduardo Sanchez, Horst Vogel, Aurelio Bay, Jian Zhao, Liang Sun, Qian Wang, Zhirui Xu, Matthias Weber, Ji Hyun Kim, Werner Lustermann, Xiao Wang, Zheng Wang

The reactions γ γ → π+ π- π+ π- and γ γ → π+ π0 π- π0 are studied with the L3 detector at LEP in a data sample collected at centre-of-mass energies from 161 GeV to 209 GeV with a total integrated luminosity of 698 pb-1. A spin-parity-helicity analysis of t ...

2006

Search for the Θ(1540)+ pentaquark using kaon secondary interactions at Belle

Aurelio Bay, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Vladislav Balagura, Lei Zhang, Ji Hyun Kim, Jing Li

Using kaon secondary interactions in the material of the Belle detector, we search for both inclusive and exclusive production of the Θ(1540) +. We set an upper limit of 2.5% at the 90% C.L. on the ratio of the Θ(1540)+ to Λ(1520) inclusive production cros ...

2006

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