General equilibrium second-order hydrodynamic coefficients for free quantum fields

This paper presents a systematic calculation of non-dissipative, quantum-origin second-order hydrodynamic corrections to the stress-energy tensor and currents for free boson and Dirac fields in thermal vorticity, deriving their Kubo formulae via equilibrium correlators and demonstrating that the axial current receives vorticity-proportional corrections independent of anomalous terms.

M. Buzzegoli (U. Florence), E. Grossi (U. Heidelberg), F. Becattini (U. Florence)2026-04-14⚛️ nucl-th

On the renormalization and quantization of topological-holomorphic field theories

This paper rigorously establishes the ultraviolet finiteness of topological-holomorphic field theories on Rd×Cd\mathbb{R}^{d'} \times \mathbb{C}^d and proves that quantum anomalies vanish—specifically for odd loops when d=1d'=1 and entirely when d>1d'>1—thereby enabling the construction of a factorization algebra structure for their quantum observables.

Minghao Wang, Brian R. Williams2026-04-14🔢 math-ph

Exploring Leptogenesis in the Era of First Order Electroweak Phase Transition

This paper proposes a novel low-scale leptogenesis mechanism enabled by a first-order electroweak phase transition, which keeps sphalerons active below the standard decoupling temperature to convert lepton asymmetry into baryon asymmetry even for right-handed neutrinos with masses as low as 35 GeV, offering potential detection signatures through stochastic gravitational waves and accelerator experiments.

Dipendu Bhandari, Arunansu Sil2026-04-14⚛️ hep-ph

Non-relativistic effective theories for fields with general potentials and their implications for cosmology

This paper presents a systematic framework for deriving non-relativistic effective field theories from relativistic theories with generic, potentially non-analytic self-interactions, establishing an effective fluid description and extending the formalism to cosmological settings to analyze ultra-light dark matter models, boson stars, and dark matter halo cores.

H. S. Modirzadeh, R. Moti, M. H. Namjoo2026-04-14⚛️ hep-ph

Smearing of dynamical quantum phase transitions in dissipative free-fermion systems

This paper demonstrates that while nonanalyticities associated with dynamical quantum phase transitions in dissipative free-fermion systems can persist under purely gain or purely loss processes, they are completely smeared out as soon as both channels are simultaneously active, a phenomenon accompanied by the emergence of a nested lightcone structure in the reduced Loschmidt echo dynamics.

Gilles Parez, Vincenzo Alba2026-04-14🔬 cond-mat

Mass and Decay-Constant Evolution of Heavy Quarkonia and BcB_c States from Thermal QCD Sum Rules

This paper utilizes finite-temperature QCD sum rules with updated quark masses and lattice-informed condensates to predict the thermal evolution of masses and decay constants for J/ψJ/\psi, Υ\Upsilon, and BcB_c mesons up to near-critical temperatures, revealing a suppression hierarchy consistent with binding energies and confirming the BcB_c 1P1P--1S1S splitting observed by LHCb.

Enis Yazici2026-04-14⚛️ hep-ph

The color force acting on a quark in the pion and nucleon

This paper utilizes the instanton liquid model enhanced by correlated instanton-anti-instanton pairs to derive and analyze the transverse distribution of the color Lorentz force acting on quarks in pions and nucleons, demonstrating that these force form factors are intimately related to gravitational and transversity form factors and yield results for nucleons consistent with recent lattice QCD calculations.

Wei-Yang Liu, Edward Shuryak, Ismail Zahed2026-04-14⚛️ hep-lat