Decay constants of heavy vector mesons at finite temperature
This study deals with determination of the decay constants of heavy vector mesons in the framework of the thermal QCD sum rules. We calculate both thermal spectral density and non-perturbative contributions taking into account the traditionally existing operators at T 0 and also additional operators...
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Veröffentlicht in: | Journal of physics. Conference series 2012-01, Vol.347 (1), p.12034-5 |
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creator | Veliev, E Veli Azizi, K Sundu, H Kaya, G Türkan, A |
description | This study deals with determination of the decay constants of heavy vector mesons in the framework of the thermal QCD sum rules. We calculate both thermal spectral density and non-perturbative contributions taking into account the traditionally existing operators at T 0 and also additional operators appearing at finite temperature. Analysis of the obtained thermal sum rules shows that the decay constants almost remain unchanged with respect to the variation of temperature up to T ≅ 100 MeV, however after this point, they start to decrease sharply with increasing temperature. |
doi_str_mv | 10.1088/1742-6596/347/1/012034 |
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We calculate both thermal spectral density and non-perturbative contributions taking into account the traditionally existing operators at T 0 and also additional operators appearing at finite temperature. Analysis of the obtained thermal sum rules shows that the decay constants almost remain unchanged with respect to the variation of temperature up to T ≅ 100 MeV, however after this point, they start to decrease sharply with increasing temperature.</description><identifier>ISSN: 1742-6596</identifier><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/347/1/012034</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Constants ; Decay ; Decay rate ; Density ; Mathematical analysis ; Operators ; Physics ; Spectra ; Sum rules ; Vector mesons</subject><ispartof>Journal of physics. 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subjects | Constants Decay Decay rate Density Mathematical analysis Operators Physics Spectra Sum rules Vector mesons |
title | Decay constants of heavy vector mesons at finite temperature |
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