178 citations · 773 across the 21 of their papers we have counts for
21 papers
Heavy Flavour Spectroscopy
Chang-Zheng Yuan
The discovery of hadronic states beyond the conventional two-quark meson and three-quark baryon picture in the last two decades is one of the most amazing accomplishments in fundam…
Novel method for identifying the heaviest QED atom
Jing-Hang Fu, Sen Jia, Xing-Yu Zhou +3
The bound state of a pair by the electromagnetic force is the heaviest and smallest QED atom. Since the discovery of the two lightest QED atoms more than 60 years ago, no…
Exotic states in the quarkonium sector
Chang-Zheng Yuan
The discovery of hadronic states beyond the conventional two-quark meson and three-quark baryon picture in the last two decades is one of the most amazing accomplishments in fundam…
Improved description of e^+e^- \to p\bar{p}π^0 cross section line shape and more stringent constraints on ψ(3770) and ψ(4230) \to p\bar{p}π^0
Ya-Qian Wang, Chang-Zheng Yuan
By using the cross sections of e^+e^- \to p\bar{p}π^0 measured at the center-of-mass energies from 3.65 to 4.60 GeV, we find that the line shape well agrees with pure continuum pro…
New puzzle in charmonium decays
Hongpeng Wang, Chang-Zheng Yuan
By analyzing existing data on pseudoscalar charmonium decays, we obtain the ratio of the branching fractions of and decays into ten different final states with ligh…
New experimental results on light and heavy hadrons
Chang-Zheng Yuan
We review the experimental progress on the study of light and heavy hadrons and focus on recent discoveries of the XYZ states, pentaquark states, and states in th…
Update of the ALEPH non-strange spectral functions from hadronic decays
Michel Davier, Andreas Hoecker, Bogdan Malaescu +2
An update of the ALEPH non-strange spectral functions from hadronic decays is presented. Compared to the 2005 ALEPH publication, the main improvement is related to the use of a…
A mathematical review on the multiple-solution problem
K. Zhu, X. H. Mo, C. Z. Yuan +1
The recent multiple-solution problem in extracting physics information from a fit to the experimental data in high energy physics is reviewed in a mathematical viewpoint. All these…
Branching fraction of the isospin violating process phi to omega pi0
C. Z. Yuan, X. H. Mo, P. Wang
We examine the parametrization of the e+e- -> omega pi0 cross section in the vicinity of the phi resonance and the extraction of the branching fraction of the isospin violating pro…
Observation of charged kappa in J/psi -> K*(892)-+Kspi+-, K*(892)-+ -> Kspi-+ at BESII
BES Collaboration, M. Ablikim
Using 58 million J/psi decays obtained by BESII, a charged kappa particle is observed in the analysis of the Kspi+- system recoiling against K*(892)-+ selected in J/psi -> KsKspi+p…
Multiple solutions in extracting physics information from experimental data
C. Z. Yuan, X. H. Mo, P. Wang
Multiple solutions exist in various experimental situations whenever the sum of several amplitudes is used to fit the experimentally measured distributions, such as the cross secti…
Reevaluation of the hadronic contribution to the muon magnetic anomaly using new e+e- -> pi+pi- cross section data from BABAR
M. Davier, A. Hoecker, B. Malaescu +2
Using recently published, high-precision pi+pi- cross section data by the BABAR experiment from the analysis of e+e- events with high-energy photon radiation in the initial state,…
Measurement of CP asymmetry in Cabibbo suppressed D0 decays
M. Staric
We measure the CP-violating asymmetries in decays to the D0 -> K+K- and D0 -> pi+pi- CP eigenstates using 540 fb^{-1} of data collected with the Belle detector at or near the Upsil…
Study of Charmonium(-like) States via ISR at Belle
Yuan Chang-Zheng
The cross sections for e+e- to pi+pi-J/psi, pi+pi-psi(2S), K+K-J/psi, DDbar, DDbar pi, D*Dbar, and D*D*bar are measured using data sample collected on or near the Upsilon(4S) reson…
Study of tau- -> K_S pi- nu_tau decay at Belle
Belle Collaboration
We present a study of the decay tau- -> K_S pi- nu_tau using a 351 fb^-1 data sample collected with the Belle detector. The analysis is based on 53110 lepton-tagged signal events.…
Study of the Rho-pi Puzzle in Charmonium Decays
X. H. Mo, C. Z. Yuan, P. Wang
The theoretical explanations about the ``Rho-pi puzzle'' in charmonium decays are reviewed extensively, and the comparison of theoretical predications with experimental data is mad…
Heavy Quarkonium Physics
N. Brambilla, M. Krämer, R. Mussa +82
This report is the result of the collaboration and research effort of the Quarkonium Working Group over the last three years. It provides a comprehensive overview of the state of t…
Measuring psi(3770) --> rho pi in e+e- experiment
P. Wang, C. Z. Yuan, X. H. Mo
In S- and D-wave mixing scheme, the branching ratio of psi(3770) --> rho pi is estimated. Together with the continuum cross section of rho pi estimated by form factor, the observed…
Relative phase between strong and electromagnetic amplitudes in psi(2S) to 0- 0- decays
C. Z. Yuan, P. Wang, X. H. Mo
With the known branching ratios of psi(2S) to pi+pi- and psi(2S) to K+K-, the branching ratio of psi(2S) to K0short K0long is calculated as a function of the relative phase between…
Possible large phase in psi(2S) -> 1-0- Decays
P. Wang, C. Z. Yuan, X. H. Mo
The strong and the electromagnetic amplitudes are analyzed on the basis of the measurements of J/psi, psi(2S) -> 1-0- in e+e- experiments. The currently available experimental info…
The Form Factors of omega pi0 and pi+ pi- at psi(2S)
P. Wang, X. H. Mo, C. Z. Yuan
The measurements of psi(2S) -> omega pi0 and psi(2S) -> pi+ pi- in e+e- experiments are examined. It is found that the non-resonance virtual photon annihilation gives large contrib…