“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 16854
School of Particles and Accelerator
  Title:   Meson Potential Energy in a Non-Conformal Holographic Model
1.  Mohammad Asadi
2.  Ali Hajilou
  Status:   Published
  Journal: Nucl. Phys. B
  No.:  115744
  Vol.:  979
  Year:  2022
  Supported by:  IPM
We study the meson potential energy in a non-conformal model at both zero and finite temperature via gauge/gravity duality. This model consists of five-dimensional Einstein gravity coupled to a scalar field with a non-trivial potential. Interestingly, at both zero and finite temperature we find that the relative meson potential energy can be considered as a measure of non-conformality of the theory. At zero temperature we show that parameters of the Cornell potential, i.e. Coulomb strength parameter �º and constant C depends on the energy scale �? that breaks conformal symmetry and the difference between the number of degrees of freedom of UV and IR fixed points �??N while QCD string tension �?s just depends on the �?. At finite temperature we see that there is a melting length lm` where beyond that the meson dissociates in the plasma and by increasing �? the value of lm`increases while its value is independent of the temperature.

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