Hep-Th, or high-energy theoretical physics, explores the fundamental building blocks of our universe and the forces that govern them. Researchers in this field use complex mathematics to understand everything from subatomic particles to the behavior of black holes, often pushing the boundaries of what we know about space and time.

At Gist.Science, we monitor the arXiv repository to ensure you stay ahead of the curve in this rapidly evolving discipline. For every new preprint uploaded to arXiv under this category, our team generates both accessible plain-language overviews and detailed technical summaries, making cutting-edge research understandable regardless of your background.

Below are the latest papers in high-energy theoretical physics, curated to help you navigate the most significant recent discoveries.

Probing the QCD Critical End Point with Finite-Size Scaling of Net-Baryon Cumulant Ratios

This paper applies finite-size scaling to net-baryon cumulant ratios from Au+Au collisions across the Beam Energy Scan Phase I range, revealing a universal collapse consistent with 3D Ising critical behavior and pinpointing the QCD critical end point at approximately sCEP33.0\sqrt{s}_{\rm CEP}\approx33.0 GeV (μB,CEP130\mu_{B,\rm CEP}\approx130 MeV, TCEP158.5T_{\rm CEP}\approx158.5 MeV).

Roy A. Lacey (Department of Chemistry, Stony Brook University, Stony Brook, NY, USA)2026-03-31⚛️ nucl-ex

Extended Scalar Particle Solutions in Black String Spacetimes with Anisotropic Quintessence

This paper presents novel analytical solutions to the Klein-Gordon equation for scalar particles in a black string spacetime immersed in anisotropic quintessence and a string cloud, utilizing Heun and Bessel equations to derive radial solutions across all relevant quintessence state parameters and identify constraints leading to spectral restrictions and dark phases.

M. L. Deglmann, B. V. Simão, C. C. Barros Jr2026-03-31⚛️ gr-qc