Analysis on Heavy Quarkonia Transitions with Pion Emission in Terms of the QCD Multipole Expansion and Determination of Mass Spectra of Hybrids

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dc.creatorKe, Hong-Wei
dc.creatorTang, Jian
dc.creatorHao, Xi-Qing
dc.creatorLi, Xue-Qian
dc.date2007-06-14
dc.date2007-09-13
dc.date.accessioned2026-07-07T11:16:51Z
dc.date.available2026-07-07T11:16:51Z
dc.descriptionOne of the most important tasks in high energy physics is search for the exotic states, such as glueball, hybrid and multi-quark states. The transitions $ψ(ns)\to ψ(ms)+ππ$ and $Υ(ns)\to Υ(ms)+ππ$ attract great attentions because they may reveal characteristics of hybrids. In this work, we analyze those transition modes in terms of the theoretical framework established by Yan and Kuang. It is interesting to notice that the intermediate states between the two gluon-emissions are hybrids, therefore by fitting the data, we are able to determine the mass spectra of hybrids. The ground hybrid states are predicted as 4.23 GeV (for charmonium) and 10.79 GeV (for bottonium) which do not correspond to any states measured in recent experiments, thus it may imply that very possibly, hybrids mix with regular quarkonia to constitute physical states. Comprehensive comparisons of the potentials for hybrids whose parameters are obtained in this scenario with the lattice results are presented.
dc.description16 pages, 2 figure
dc.identifierhttps://arxiv.org/abs/0706.2074
dc.identifierhttp://arxiv.org/abs/0706.2074
dc.identifierPhys.Rev.D76:074035,2007
dc.identifierdoi:10.1103/PhysRevD.76.074035
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192814
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAnalysis on Heavy Quarkonia Transitions with Pion Emission in Terms of the QCD Multipole Expansion and Determination of Mass Spectra of Hybrids
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