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dc.contributor.authorVeliev, Elşen Veli
dc.contributor.authorAzizi, Kazem
dc.contributor.authorSundu, Hayriye
dc.contributor.authorAkşit, Nurcan
dc.date.accessioned2015-01-31T11:19:52Z
dc.date.available2015-01-31T11:19:52Z
dc.date.issued2012-01
dc.identifier.citationVELİEV, E.V., AZİZİ, K., SUNDU, H., AKŞİT, N. (2012). Investigation of heavy-heavy pseudoscalar mesons in thermal QCD sum rules. Journal of Physics G: Nuclear and Particle Physics, 39 (1), pp. 1-14. http://dx.doi.org/10.1088/0954-3899/39/1/015002.en_US
dc.identifier.issn0954-3899
dc.identifier.other000298407800003 (WOS)
dc.identifier.urihttp://dx.doi.org/10.1088/0954-3899/39/1/015002
dc.identifier.urihttp://hdl.handle.net/11376/932
dc.description.abstractWe investigate the mass and decay constant of the heavy-heavy pseudoscalar, B(c), eta(c) and eta(b) mesons in the framework of finite-temperature QCD sum rules. The annihilation and scattering parts of spectral density are calculated in the lowest order of perturbation theory. Taking into account the additional operators arising at finite temperature, the nonperturbative corrections are also evaluated. The masses and decay constants remain unchanged under T congruent to 100 MeV, but after this point, they start to diminish with increasing temperature. At critical or deconfinement temperature, the decay constants reach approximately 35% of their values in vacuum, while the masses are decreased about 7%, 12% and 2% for B(c), eta(c) and eta(b) states, respectively. The results at zero temperature are in good consistency with the existing experimental values as well as predictions of the other nonperturbative approaches.en_US
dc.language.isoengen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionof10.1088/0954-3899/39/1/015002en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectLeptonic Decay Constantsen_US
dc.subjectFinite-Temperatureen_US
dc.subjectResonance Physicsen_US
dc.subjectSpectrumen_US
dc.titleInvestigation of heavy-heavy pseudoscalar mesons in thermal QCD sum rulesen_US
dc.typearticleen_US
dc.relation.journalJournal of Physics G: Nuclear and Particle Physicsen_US
dc.contributor.departmentDoğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.contributor.authorIDTR101590en_US
dc.contributor.authorIDTR152319en_US
dc.identifier.volume39en_US
dc.identifier.issue1en_US
dc.identifier.startpage1en_US
dc.identifier.endpage14en_US


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