Thermal behavior of the mass and residue of hyperons

Abstract

We investigate the mass and residue of the $\Sigma$, $\Lambda$ and $\Xi$ hyperons at finite temperature in the framework of thermal QCD sum rules. In our calculation, we take into account the additional operators coming up at finite temperature. We find the temperature-dependent continuum threshold for each hyperon using the obtained sum rules for their mass and residue. The numerical results demonstrate that the mass and residue of the particles under consideration remain stable up to a certain temperature, after which they decrease by increasing the temperature.

25Pages, 6 Figures and 2 Tables

References in corpus (5)

• The QCD Equation of State with almost Physical Quark Masses
• Equation of state and QCD transition at finite temperature
• Towards NNLO Accuracy in the QCD Sum Rule for the Kaon Distribution Amplitude
• Rho-meson resonance broadening in QCD at finite temperature
• Modifications on nucleon parameters at finite temperature

Cited by in corpus (3)

• Decuplet baryons in a hot medium
• S-Wave Single Heavy Baryons with Spin-3/2 at Finite Temperature
• Properties of spin-1/2 heavy baryons at nonzero temperature