Acoustic Black Hole in Hayward Spacetime: Shadow, Quasinormal Modes and Analogue Hawking Radiation

This paper investigates an acoustic black hole within Hayward spacetime derived from relativistic Gross-Pitaevskii theory, numerically analyzing its shadow, quasinormal modes, and analogue Hawking radiation to demonstrate how a tuning parameter enhances emission rates and shadow size while stabilizing oscillation frequencies through effective potential modifications.

Zhong-Yi Hui, Yu-Ye Cheng, Jia-Rui Sun2026-03-02⚛️ hep-th

Imprints of UA(1)U_A(1) chiral anomaly and disorder in the Dirac eigenspectrum of QCD at finite temperature

This study utilizes lattice QCD simulations to analyze the Dirac eigenspectrum at finite temperature, revealing how intermediate level statistics and Thouless conductance serve as diagnostics for the interplay between chiral symmetry restoration and disorder-driven localization, particularly in the context of the effective restoration of the anomalous UA(1)U_A(1) symmetry.

Ravi Shanker, Harshit Pandey, Sayantan Sharma2026-03-02⚛️ hep-th

Fermion Mass Hierarchy and a High Quality Axion From Gauged U(1) Flavor Symmetry

This paper proposes a class of models based on a gauged U(1)FU(1)_F flavor symmetry that simultaneously explains the fermion mass hierarchy via the Froggatt-Nielsen mechanism and solves the strong CP problem with a high-quality axion, while also providing a unified framework for dark matter, leptogenesis, and testable flavor-changing predictions.

K. S. Babu, Sai Charan Chandrasekar, Zurab Tavartkiladze2026-03-02⚛️ hep-th