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dc.contributor.authorSundu, Hayriye
dc.contributor.authorAgaev, Shahin S.
dc.contributor.authorAzizi, Kazem
dc.date.accessioned2018-11-21T18:05:48Z
dc.date.available2018-11-21T18:05:48Z
dc.date.issued2018-03
dc.identifier.citationSundu, H., Agaev, S. S., Azizi, K. (2018). New a(1)(1420) state: structure, mass, and width. The Physical Review D, 97(5), 1-12, http://dx.doi.org/10.1103/PhysRevD.97.054001en_US
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.other000426630500001 (WOS)
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevD.97.054001
dc.identifier.urihttp://hdl.handle.net/11376/3177
dc.descriptionAzizi, Kazem (Dogus Author)en_US
dc.description.abstractThe structure, spectroscopic parameters and width of the resonance with quantum numbers J(PC) = 1(++) discovered by the COMPASS Collaboration and classified as the a(1)(1420) meson are examined in the context of QCD sum rule method. In the calculations the axial-vector meson a(1)(1420) is treated as a fourquark state with the diquark-antidiquark structure. The mass and current coupling of a(1)(1420) are evaluated using QCD two-point sum rule approach. Its observed decay mode a(1)(1420) -> f (0)(980)pi, and kinematically allowed ones, namely a(1) -> K*(+/-) K--/+, a(1) -> K*(0)(K) over bar (0) and a(1) -> (K) over bar*K-0(0) channels are studied employing QCD sum rules on the light-cone. Our prediction for the mass of the a(1)(1420) state m(a1) = 1416(-79)(+81) MeV is in excellent agreement with the experimental result. Width of this state Gamma = 145.52 +/- 20.79 MeV within theoretical and experimental errors is also in accord with the COMPASS data.en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionof10.1103/PhysRevD.97.054001en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectQCD Sum-Rulesen_US
dc.subjectLight Scalar Mesonsen_US
dc.subjectResonance Physicsen_US
dc.subject4-Quark Statesen_US
dc.titleNew a(1)(1420) state: structure, mass, and widthen_US
dc.typearticleen_US
dc.relation.journalThe Physical Review Den_US
dc.contributor.departmentDoğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.contributor.authorIDTR101590en_US
dc.contributor.authorIDTR49172en_US
dc.identifier.volume97en_US
dc.identifier.issue5en_US
dc.identifier.startpage1en_US
dc.identifier.endpage12en_US
dc.relation.tubitak115F183


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