1–4 Sept 2025
Buenos Aires
America/Argentina/Buenos_Aires timezone

Equation of State for Dense Matter from QCD Sum Rules: Implications for Hybrid Star

Not scheduled
20m
Buenos Aires

Buenos Aires

Speaker

Prof. Hamidreza Moshfegh (University of Tehran)

Description

In this work, we employ coupling constants derived from non-perturbative QCD Sum Rules in conjunction with the relativistic mean field (RMF) framework to construct the equation of state (EoS) for beta-stable baryonic matter. Utilizing this EoS, we systematically investigate the structure of hyperonic and hybrid stars, including the Hyperon-Quark phase transition , modeled via conventional approaches such as the MIT Bag model. Our results demonstrate that, with an appropriate selection of QCD Sum Rules-based coupling constants available in the literature, the existence of hybrid stars with masses exceeding two solar masses can be theoretically justified. Additionally, we compute key astrophysical observables, including tidal deformability, and show that the proposed approach effectively reproduces constraints derived from recent neutron star observations.

Author

Prof. Hamidreza Moshfegh (University of Tehran)

Co-authors

Presentation materials

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