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

In-medium QCD splittings beyond the soft, large-NcN_c and harmonic-oscillator approximations all at once

This paper presents the first complete numerical solution to the BDMPS-Z equations for in-medium QCD splittings, providing a precise determination of splitting functions that goes beyond standard soft, large-NcN_c, and harmonic-oscillator approximations by incorporating finite-energy effects, subleading-color contributions, and realistic parton-medium interactions.

Marco Leitão, José Guilherme Milhano, Alba Soto-Ontoso2026-06-25
⚛️ phenomenology

Impact of parity-violating deep-inelastic scattering on the weak mixing angle and high-xx parton distributions

This paper demonstrates that incorporating future parity-violating deep-inelastic scattering pseudodata into global QCD analyses will significantly constrain the weak mixing angle at low Q2Q^2 and high-xx parton distributions, highlighting the critical need for simultaneous electroweak and QCD analysis to avoid biased results.

R. M. Whitehill, M. M. Dalton, T. Liu, W. Melnitchouk, N. Sato2026-06-25
⚛️ nuclear experiments

Positron-Emitting and Electron-Capturing Double-Beta Processes in the Standard Model and Beyond

Motivated by the proposed NuDoubt++ experiment, this paper analyzes positron-emitting and electron-capturing double-beta decay in candidate isotopes 78{}^{78}Kr, 106{}^{106}Cd, and 124{}^{124}Xe by providing nuclear matrix elements and phase-space factors for both standard and neutrinoless modes, demonstrating that these processes can probe lepton-number-violating new physics at scales of 1–100 TeV and resolve operator degeneracies when combined with conventional double-beta decay searches.

Lukáš Gráf, Jenni Kotila, Oliver Scholer2026-06-25
⚛️ lattice

Exponential speedup in quantum simulation of Kogut-Susskind Hamiltonian via orbifold lattice

This paper demonstrates that the Kogut-Susskind Hamiltonian emerges as the infinite scalar mass limit of the more efficient orbifold lattice formulation, thereby resolving implementation challenges and enabling digital quantum simulations of SU(NN) Yang-Mills theories with exponential speedup over classical and prior quantum methods.

Georg Bergner, Masanori Hanada, Emanuele Mendicelli2026-06-24
⚛️ high-energy experiments

New Physics Opportunities at Neutrino Facilities: BSM Physics at Accelerator, Atmospheric, and Reactor Neutrino Experiments

This white paper summarizes the landscape of new physics opportunities beyond neutrino oscillations at current and future accelerator, atmospheric, and reactor neutrino facilities, with a particular focus on East Asian programs and next-generation sensitivities as presented at the NPN 2024 workshop.

Koun Choi, Doojin Kim, Jong-Chul Park, Seodong Shin, Pouya Bakhti, Ki-Young Choi, Chang Hyon Ha, Kazumi Hata, Wooyoung J (…)2026-06-24
⚛️ phenomenology

Analyzing ttˉZt\bar{t}Z-couplings at the future e−pe^-p collider

This paper demonstrates that the proposed Large Hadron Electron Collider (LHeC) can significantly improve the precision of Standard Model ttˉZt\bar{t}Z couplings to the percent level and constrain anomalous tensor interactions through a detailed analysis of the e−p→e−ttˉe^- p \to e^- t \bar{t} process in the semileptonic decay channel, offering competitive sensitivity to future hadron and lepton colliders.

Katlego Machethe, Pramod Sharma, Mukesh Kumar, Rafiqul Rahaman, Bruce Mellado2026-06-24
⚛️ high-energy theory

Cosmological preference for a positive neutrino mass at 2.7σ\sigma: A joint analysis of DESI DR2, DESY5, and DESY1 data

By performing a joint analysis of DESI DR2, CMB, DESY5 supernova, and DESY1 weak lensing data within a dynamical dark energy framework, this study reports a high-confidence 2.7σ2.7\sigma detection of a positive total neutrino mass of 0.098−0.037+0.016 eV0.098^{+0.016}_{-0.037}\,\mathrm{eV}, driven by DESI's preference for evolving dark energy and the inclusion of free effective neutrino species and weak lensing constraints.

Guo-Hong Du, Tian-Nuo Li, Peng-Ju Wu, Jing-Fei Zhang, Xin Zhang2026-06-24