QCD Sum Rule Study of the Masses of Light Tetraquark Scalar Mesons

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dc.creatorChen, Hua-Xing
dc.creatorHosaka, Atsushi
dc.creatorZhu, Shi-Lin
dc.date2006-09-18
dc.date2007-06-20
dc.date.accessioned2026-07-07T08:18:50Z
dc.date.available2026-07-07T08:18:50Z
dc.descriptionWe study the low-lying scalar mesons of light u, d, s flavors in the QCD sum rule. Having all possible combinations of tetraquark currents in the local form, QCD sum rule analysis has been carefully performed. We found that using the appropriate tetraquark currents, the masses of sigma, kappa, f_0 and a_0 mesons appear in the region of 0.6 -- 1 GeV with the expected ordering. The results are compared with that of the conventional \bar{q} q currents, where the masses are considerably larger.
dc.description4 pages, 2 figures; reference added, minor corrections; version to appear in Physics Letters B
dc.identifierhttps://arxiv.org/abs/hep-ph/0609163
dc.identifierhttp://arxiv.org/abs/hep-ph/0609163
dc.identifierPhys.Lett.B650:369-372,2007
dc.identifierdoi:10.1016/j.physletb.2007.05.031
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/134574
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectNuclear Theory
dc.titleQCD Sum Rule Study of the Masses of Light Tetraquark Scalar Mesons
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