QUARKONIA

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Production of higher excited quarkonium pair at the super Z factory
《Chinese Physics C》2024年第7期45-54,共10页廖其力 蒋军 
Supported by the Scientific Research Fund of Chengdu University of Information Technology(KYTZ2022113);the National Key Research and Development Plan of China,Key Project of Cyberspace Security Governance(2022YFB3103103)。
The heavy constituent quark pair of the heavy quarkonium is produced perturbatively and subsequently undergoes hadronization into the bound state non-perturbatively.The production of the heavy quarkonium is essential ...
关键词：Z boson decays pair of higher excited quarkonia NRQCD D0I:10.1088/1674-1137/ad3c2e 
Next-to-leading-order QCD corrections to gluon fragmentation into ^(1)S_(0)^((1.8)) quarkonia
《Chinese Physics C》2023年第3期42-48,共7页冯锋 贾宇 
supported by the National Natural Science Foundation of China(12275353 and 11875318);.Y.J.is supported in part by the National Natural Science Foundation of China(11475188);CRC110 by DGF and NSFC(11621131001)。
Within the NRQCD factorization framework,we compute the next-to-leading-order QCD corrections to the gluon fragmentation into the ^(1)S_(0)^((1.8)) Fock components of a quarkonium,at the lowest order in velocity expan...
关键词：fragmentation function NRQCD NLO 
Instanton effects on the heavy-quark static potential
《Chinese Physics C》2017年第8期19-30,共12页U.T.Yakhshiev Hyun-Chul Kim B.Turimov M.M.Musakhanov Emiko Hiyama 
Supported by Basic Science Research Program through the National Research Foundation(NRF)of Korea funded by the Korean government(Ministry of Education,Science and Technology,MEST);Grant Numbers 2016R1D1A1B03935053(UY)and 2015R1D1A1A01060707(HChK);partly Supported by RIKEN iTHES Project
We investigate instanton effects on the heavy-quark potential, including its spin-dependent part, based on the instanton liquid model. Starting with the central potential derived from the instanton vacuum, we obtain t...
关键词：instanton-induced interactions heavy-quark potential QUARKONIA 
Further insights into the “ρπ puzzle”
《Chinese Physics C》2010年第2期299-304,共6页赵强 李刚 张肇西 
Supported by National Natural Science Foundation of China (10675131,10491306,10547001,90403031);Chinese Academy of Sciences (KJCX3-SYW-N2);UK EPSRC(GR/S99433/01)
Based on a systematic investigation of J/ψ（ψ＇）→VP, where V and P stand for light vector and pseudoscalar mesons, we identify the role played by the electromagnetic （EM） transitions and intermediate meson loop ...
关键词：vector-meson dominance decays of J/ψ UPSILON other quarkonia hadronic decays of mesons 
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