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H. K. Park

Researcher at Kyungpook National University

Publications -  257
Citations -  14806

H. K. Park is an academic researcher from Kyungpook National University. The author has contributed to research in topics: KEKB & Branching fraction. The author has an hindex of 59, co-authored 257 publications receiving 13673 citations.

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Journal ArticleDOI

Observation of a Narrow Charmoniumlike State in Exclusive B±→K±π+π-J/ψ Decays

Suyong Choi, +175 more
TL;DR: In this article, a narrow charmonium-like state produced in the exclusive decay process B+/--->K+/-pi(+)pi(-)J/psi has been observed, which has a mass of 3872.0+/-0.6(stat)+/- 0.5(syst) MeV.
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Determination of jet energy calibration and transverse momentum resolution in CMS

S. Chatrchyan, +2271 more
TL;DR: In this article, the transverse momentum balance in dijet and γ/Z+jets events is used to measure the jet energy response in the CMS detector, as well as the transversal momentum resolution.
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Study of e + e - →π + π - J/ψ and Observation of a Charged Charmoniumlike State at Belle

Z. Q. Liu, +191 more
TL;DR: In a study of Y(4260) → π+ π- J/φ decays, a structure is observed in the M(π(±)J/ψ) mass spectrum with 5.2σ significance that can be interpreted as a new charged charmoniumlike state.
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Observation of two charged bottomoniumlike resonances in Υ(5S) decays.

A.E. Bondar, +157 more
TL;DR: The observation of two narrow structures in the mass spectra of the π(±)Υ(nS) and π (±)h(b)(mP) pairs that are produced in association with a single charged pion in Υ(5S) decays is reported.
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Measurement of the differential branching fraction and forward-backward asymmetry for B --> K(*)l+l-.

J. T. Wei, +153 more
TL;DR: The differential branching fraction, isospin asymmetry, K* polarization, and the forward-backward asymmetry (A(FB)) as functions of q2 = M(ll)(2)c2 and the fitted A(FB) spectrum exceeds the standard model expectation by 2.7 standard deviations.