Volume 126, Number 5, June 2019
|Number of page(s)||6|
|Section||The Physics of Elementary Particles and Fields|
|Published online||09 July 2019|
Light D-wave axial-tensor K2(1820) meson at finite temperature
1 Özyeğin University, Department of Natural and Mathematical Sciences - Çekmeköy, Istanbul, Turkey
2 Physik Department, Technische Universität München - D-85747 Garching, Germany
3 Department of Physics, Kocaeli University - 41380 Izmit, Turkey
Received: 17 February 2019
Accepted: 11 June 2019
In this work the properties of the axial-tensor K2(1820) meson in a hot medium are investigated. The mass and the decay constant of this state are calculated via thermal QCD sum rules considering QCD condensates up to dimension five. Our analysis show that both mass and decay constant stay almost monotonous up to certain temperatures and then they diminish with increasing temperature. The mass and decay constant estimated at zero temperature are in good agreement with the present experimental data and theoretical estimations.
PACS: 11.55.Hx – Sum rules / 14.40.-n – Mesons / 11.10.Wx – Finite-temperature field theory
© EPLA, 2019
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