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.

⚛️ nuclear theory

Charged-current neutrino opacity within the relativistic Hartree-Fock framework for astrophysical simulations of core-collapse supernovae and binary neutron star mergers

This paper introduces a relativistic Hartree-Fock framework with momentum-dependent nuclear interactions to improve the calculation of charged-current neutrino opacities for astrophysical simulations, revealing significant discrepancies and substantial shifts in medium-dependent modifications compared to commonly used relativistic mean-field models.

Kamil Sokołowski, Anil Kumar, Tobias Fischer2026-05-19
⚛️ general relativity

Impact of the axion-like self-interactions in gravitational atoms for LISA

This paper demonstrates that the Laser Interferometer Space Antenna (LISA) can detect and constrain the masses and self-interaction strengths of axion-like particles forming gravitational atoms around black holes by analyzing the dephasing effects they induce on gravitational waveforms from extreme- and intermediate-mass-ratio inspirals.

Samuel Gómez Gómez, Xisco Jimenez Forteza, Carlos Palenzuela Luque2026-05-19
⚛️ phenomenology

Helicity effects in the dynamically assisted Schwinger mechanism

This study demonstrates that in a dynamically assisted Schwinger mechanism driven by counterpropagating circularly polarized laser pulses, dynamical assistance not only enhances total electron-positron pair production but also significantly amplifies helicity asymmetry, causing right- and left-handed electrons to preferentially populate opposite momentum half-spaces with a ratio governed primarily by the polar angle.

A. I. Baksheev, V. A. Bokhan, A. Kudlis, I. A. Aleksandrov2026-05-19
⚛️ phenomenology

The Triadic Texture: Neutrino Predictions, Viable Vacuum, and Phenomenological Constraints

This paper proposes a minimal and predictive Type-I seesaw model based on an extended SU(2)L⊗U(1)Y⊗A4⊗Z10⊗Z7⊗Z5⊗Z3SU(2)_L \otimes U(1)_Y \otimes A_4 \otimes Z_{10} \otimes Z_7 \otimes Z_5 \otimes Z_3 symmetry that yields a specific neutrino mass texture favoring normal hierarchy and predicting mixing parameters, while simultaneously constraining the scalar sector, charged lepton flavor violation, and baryon asymmetry generation.

Sagar Tirtha Goswami, Pralay Chakraborty, Subhankar Roy2026-05-19
⚛️ nuclear theory

Positivity of the effective range for finite range attractive potentials with a repulsive core

This paper rigorously proves that for finite-range potentials featuring an inner repulsive core and an outer attractive tail, the effective range remains strictly positive whenever the scattering length exceeds the potential's range, thereby providing a fundamental constraint on using the sign of the effective range to distinguish exotic hadron configurations.

Davide Germani2026-05-19✓ Author reviewed ⓘ
⚛️ nuclear theory

Gravitational form factors of light mesons from Basis Light-Front Quantization

This paper computes the gravitational form factors of pion and kaon mesons using Basis Light-Front Quantization, finding agreement with lattice QCD for the A(Q2)A(Q^2) form factor while observing an enhanced magnitude for the D(Q2)D(Q^2) form factor at low momentum transfer due to zero-mode effects, and subsequently derives the mesons' mass and mechanical radii along with their internal pressure and shear-force distributions.

Amrita Sain, Sreeraj Nair, Chandan Mondal, Xingbo Zhao, James P. Vary2026-05-19
⚛️ phenomenology

Final-state rescattering in Bˉ(s)0→Λc+Λˉc−\bar{B}^{0}_{(s)}\to \Lambda^{+}_{c}\bar{\Lambda}^{-}_{c} decays

This paper investigates the recently observed Bˉ(s)0→Λc+Λˉc−\bar{B}^{0}_{(s)}\to \Lambda^{+}_{c}\bar{\Lambda}^{-}_{c} decays within a final-state rescattering framework, demonstrating that long-distance interactions successfully explain the measured branching fractions while predicting nearly vanishing CP asymmetries and a sizable longitudinal polarization for the Bˉ0\bar{B}^{0} mode.

Zhu-Ding Duan, Xiao Huang, Dong-Hao Li, Run-Hui Li, Jian-Peng Wang, Fu-Sheng Yu2026-05-19