⚛️ Category

hep-ph

5381 papers

Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

⚛️ high-energy theory

Effective-metric formulation of Casimir energies in nonlinear scalar and electromagnetic theories

This paper establishes that Casimir energies in nonlinear scalar and electromagnetic theories can be accurately computed using an effective-metric prescription derived from the Hessian of the Lagrangian or fluctuation branches, a method validated by exact agreement between direct mode summation and the effective-metric formula for nonlinear electrodynamics in a constant magnetic background.

C. A. Escobar2026-06-17
⚛️ nuclear theory

Can a Slow and Strong Phase Transition in Neutron Stars Relieve Major Compact-Star Observation Tensions?

This paper proposes that neutron stars undergoing a slow, strong first-order hadron-quark phase transition can resolve conflicting observational tensions regarding compact star masses and radii by supporting extended stable hybrid branches that simultaneously accommodate the high mass of GW190814's secondary component and the unusually small radii of HESS J1731--347 and XTE J1814--338.

Chen Zhang2026-06-17
⚛️ phenomenology

Search for a Time-Dependent Z' Resonance in the Dimuon Channel

This paper introduces a novel time-domain search strategy using a two-dimensional unbinned likelihood framework to detect time-varying Z′Z' resonances in CMS dimuon data, demonstrating that incorporating temporal information can enhance sensitivity to signals with periodically modulated masses compared to conventional time-integrated analyses.

Marlon P. Brade, Jeremiah D. Juevesano, Venus Abbegaile S. Carbonel, Karen E. Bustamante, Dennis C. Arogancia, Jan Micke (…)2026-06-17
⚛️ phenomenology

Synergy between CSST and future gravitational-wave detectors: Probing primordial black holes by cross-correlating dark sirens with galaxies

This paper demonstrates that cross-correlating galaxy surveys from the Chinese Space-station Survey Telescope (CSST) with future gravitational-wave detector networks, particularly the multi-band BDET2CE configuration, offers a powerful statistical method to identify primordial black holes by distinguishing their unique clustering biases from astrophysical black holes, potentially detecting PBH contributions as low as 20% of the total merger rate.

Ya-Nan Du, Ji-Yu Song, Jing-Fei Zhang, Xin Zhang2026-06-17
⚛️ high-energy theory

Hamiltonian formalism for Bose excitations in a plasma with a non-Abelian interaction: plasmon bremsstrahlung

This paper proposes a classical Hamiltonian formalism for plasmon bremsstrahlung in a hot quark-gluon plasma by generalizing the Lie-Poisson bracket to include non-Abelian color charges and deriving a self-consistent system of kinetic equations to describe the time evolution of plasmon number densities and hard particle color charges.

Yu. A. Markov, M. A. Markova, N. Yu. Markov2026-06-17
⚛️ phenomenology

Constraints on the Sum of Neutrino Masses from ACT DR6 and DESI DR2 Considering Isocurvature Initial Conditions

This paper presents the first joint constraints on the sum of neutrino masses and neutrino density isocurvature modes using Planck 2018, ACT DR6, SPT-3G, DESI DR2, and DES Year 5 data, finding that while the inclusion of isocurvature perturbations only marginally weakens the upper mass limits, the tightest bounds are highly sensitive to dark energy models and prior assumptions regarding the neutrino mass hierarchy.

Hongsheng Hou, Sai Wang, Zhi-Chao Zhao, Xin Zhang2026-06-17