Higher-spin light-flavor baryonic spectroscopy in AdS/QCD at finite temperature

Abstract

Light-flavor baryon resonances in the $J^P=3/2^+$, $J^P=5/2^+$, and $J^P=5/2^-$ families are investigated in a soft-wall AdS/QCD model at finite temperature, including the zero temperature limit. Regge-like trajectories relating the configurational entropy underlying these resonances to both the radial quantum number and the baryon mass spectra are constructed, allowing for the extrapolation of the higher-spin light-flavor baryonic mass spectra to higher values of the radial quantum number. The configurational entropy is shown to increase drastically with temperature, in the range beyond T ~ 38 MeV. The mass spectra of baryon families are analyzed, supporting a phase transition nearly above the Hagedorn

Figures (11)

• Figure 1: Mass spectra for baryon resonances with $J^P=\frac{3}{2}^+$ obtained from the AdS/QCD model and the experimental values in PDG ParticleDataGroup:2024cfk.
• Figure 2: Mass spectra for baryon resonances with $J^P=\frac{5}{2}^+$ obtained from the AdS/QCD model and the experimental values in PDG ParticleDataGroup:2024cfk.
• Figure 3: Mass spectra for baryon resonances with $J^P=\frac{5}{2}^-$ obtained from the AdS/QCD model and the experimental values in PDG ParticleDataGroup:2024cfk.
• Figure 4: DCE of the $J^P=\frac{3}{2}^+$ baryons as a function of the $n$ quantum number.
• Figure 5: DCE of the $J^P=\frac{3}{2}^+$ baryons as a function of their squared mass, for $n=0,\ldots,5$.