⚛️ Category

hep-ph

3413 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.

⚛️ phenomenology

Investigating the transverse-momentum- and pseudorapidity-dependent flow vector decorrelation in p--Pb collisions with a Multi-Phase Transport model

This study utilizes the Multi-Phase Transport (AMPT) model to systematically investigate transverse-momentum and pseudorapidity-dependent flow vector decorrelations in p--Pb collisions at 5.02 TeV, demonstrating that the string-melting version successfully describes experimental data while highlighting the critical roles of initial conditions and partonic interactions, and the necessity of subtracting nonflow effects for accurate analysis.

Siyu Tang, Zuman Zhang, Chao Zhang, Liang Zheng, Renzhuo Wan2026-01-28
⚛️ nuclear theory

The 1/Nc1/N_c Operator Analysis of the Combined Octet and Decuplet Baryons Contact Interactions in SU(3) Chiral Effective Field Theory

This paper constructs the non-derivative four-point contact interactions for octet and decuplet baryons in SU(3) Chiral Effective Field Theory up to Next-to-Leading Order, utilizing the 1/Nc1/N_c expansion to reduce the number of independent Low-Energy Constants from 134 to 24 and deriving sum rules for ΩΩ\Omega\Omega and ΩN\Omega N scattering to be tested by future lattice QCD results.

Chindanai Bubpatate, Dominador F. Vaso,, Daris Samart2026-01-28
⚛️ phenomenology

Quark, lepton and right-handed neutrino production via inflation

This paper demonstrates that inflationary expansion, by driving scalar field fluctuations to the Hubble scale and thereby significantly increasing fermion masses via Yukawa couplings, acts as a highly efficient mechanism for producing Standard Model fermions, right-handed neutrinos, and fermionic dark matter, potentially serving as the primary source for the latter two.

Duarte Feiteira, Fotis Koutroulis, Oleg Lebedev, Stefan Pokorski2026-01-28
⚛️ phenomenology

Lepton Flavor Violation: From Muon Decays to Muon Colliders

This paper investigates the complementary potential of future low-energy precision experiments and high-energy muon colliders to probe lepton-flavor-violating signals within the Standard Model Effective Field Theory, demonstrating that while muon colliders can confirm low-energy discoveries, they uniquely extend sensitivity to higher energy scales and significantly improve constraints on Higgs boson flavor-violating decays.

Pouya Asadi, Hengameh Bagherian, Katherine Fraser, Samuel Homiller, Qianshu Lu2026-01-28
⚛️ high-energy experiments

Event Tokenization and Masked-Token Prediction for Anomaly Detection at the Large Hadron Collider

This paper proposes a novel unsupervised anomaly detection method for the Large Hadron Collider that utilizes lightweight, encoder-based LLM-like networks trained on masked-token prediction to identify new physics signals, such as four-top-quark production, by detecting deviations in background event reconstruction without prior knowledge of signal characteristics.

Ambre Visive, Polina Moskvitina, Clara Nellist, Roberto Ruiz de Austri, Sascha Caron2026-01-28
⚛️ phenomenology

The inclusive Higgs boson cross-section in gluon-gluon fusion in soft-virtual approximation at fourth order in QCD

This paper presents precise fourth-order QCD calculations for the inclusive Higgs boson cross-section in gluon-gluon fusion using soft-virtual approximations, demonstrating that these higher-order contributions significantly improve perturbative convergence and reduce scale uncertainties while identifying parton distribution functions and the strong coupling constant as the dominant sources of residual uncertainty.

Goutam Das, Sven-Olaf Moch2026-01-28
⚛️ high-energy experiments

Drell-Yan Production of New Particles at Fixed-Target Experiments: Heavy Neutral Lepton as a Case Study

This paper demonstrates that Drell-Yan production of light vector boson mediators significantly enhances the sensitivity of fixed-target experiments like SBND, DarkQuest, DUNE ND, and SHiP to detect Heavy Neutral Leptons, potentially reaching Type-I Seesaw mixing parameters and probing new gauge couplings in various B-L and B-3L models.

Francis M. Burk, P. S. Bhupal Dev, Bhaskar Dutta, Tao Han, Aparajitha Karthikeyan, Doojin Kim2026-01-28