Thermal behaviors of light unflavored tensor mesons in the framework of QCD sum rule

4th International Hadron Physics Conference

Azizi, K.^1 ; Türkan, A.^2 ; Sundu, H.^2 ; Veliev, E Veli^2 ; Yazici, E.^2

Physics Division, Faculty of Arts and Sciences, Dou University Acibadem-Kadiköy, Istanbul

34722, Turkey^1

Department of Physics, Kocaeli University, Izmit

41380, Turkey^2

关键词: Decay constants;    Deconfinement;    Operator product expansion;    QCD sum rules;    Sum rule;    Thermal behaviors;    Zero temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/562/1/012016/pdf
DOI  :  10.1088/1742-6596/562/1/012016

来源: IOP

【 摘 要 】

In this paper, we investigated the sensitivity of the masses and decay constants of f2(1270) and a2(1320) tensor mesons to the temperature using OCD sum rule approach. In our calculations, we take into account new additional operators appearing in operator product expansion (OPE). At the end of numerical analyses we show that at deconfinement temperature the decay constants and masses decreased by 6% and 96% of their vacuum values, respectively. Our results on the masses and decay constants at zero temperature of the tensor mesons are consistent with the experimental data as well as the vacuum sum rules predictions.