⚛️ Category

hep-th

4286 papers

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.

⚛️ high-energy theory

Quantum Anomalies of Tensionless Bosonic Strings

This paper systematically compares four formulations of tensionless bosonic string theory using a unified algebraic framework to demonstrate that while the induced vacuum yields no critical dimension, the flipped vacuum reveals that only the ILST and hybrid null strings possess consistent critical dimensions (including D=26D=26), whereas the conformal and Carroll-Weyl gauged strings remain structurally anomalous with no consistent critical dimension.

Bin Chen, Zezhou Hu2026-08-05
⚛️ general relativity

Integrated cosmological memory: A dark-siren method to probe dark energy

This paper proposes a novel, catalog-free "dark siren" method that leverages the Integrated Cosmological Memory (ICM) alongside standard gravitational-wave signals to break distance-redshift degeneracy and provide robust constraints on dark energy, potentially mitigating the Hubble tension without relying on electromagnetic counterparts or galaxy catalogs.

Indranil Chakraborty, Sayantan Ghosh, Susmita Jana, Archana Pai, S. Shankaranarayanan2026-08-05
⚛️ phenomenology

Two-loop QCD amplitudes for ttˉWt\bar{t}W production at the LHC in the leading-colour approximation

This paper presents a numerical computation of two-loop QCD scattering amplitudes for ttˉWt\bar{t}W production at the LHC in the leading-colour approximation, utilizing a hybrid framework that combines numerical evaluation with analytic control to retain exact mass dependence and provide validated hard functions for next-to-next-to-leading-order cross-section calculations.

Matteo Becchetti, Dhimiter Canko, Xiang Chen, Vsevolod Chestnov, Maximilian Delto, Sara Ditsch, Tiziano Peraro, Mattia P (…)2026-08-05
⚛️ high-energy theory

Logarithmic Soft Photon Theorem and Waveform Tails in Higher Dimensions

This paper derives the leading logarithmic soft-photon theorem in spacetime dimensions greater than four and its classical radiative counterpart, demonstrating how one-loop quantum corrections and long-range acceleration effects generate universal early- and late-time tails in electromagnetic waveforms that distinguish between intrinsically quantum and classically radiative contributions.

Biswajit Sahoo2026-08-05
⚛️ high-energy theory

Chiral phases for massive fermions and spinor classifications

This paper explores the Lounesto classification of regular spinors by introducing two chiral phases—one arising from gamma matrix choices and another from unconstrained massive field degrees of freedom—to demonstrate that varying these phases generates all regular spinor classes and suggests that the Standard Model's fermion chiral phases constitute new physical parameters that are unmeasurable within current weak interactions.

Cheng-Yang Lee2026-08-04