⚛️ Category

hep-ph

5243 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

Spectra and nonleptonic decays of multiply heavy baryons in a finite-size quark-diquark model

This paper employs a generalized nonrelativistic quark-diquark model that accounts for finite diquark size to predict the mass spectra and two-body nonleptonic weak decay rates of ground-state doubly and triply heavy baryons, achieving agreement with lattice QCD and LHCb data while quantifying the significant suppression of bottom-to-charm transition widths due to spatial overlap and phase-space effects.

Yongtao Yu, Tao Guo2026-10-06
⚛️ phenomenology

Bakamjian--Thomas construction and light-front zero modes in pseudoscalar transitions: A comparison with the covariant Bethe--Salpeter model

This paper demonstrates that within the Bakamjian-Thomas light-front quark model, pseudoscalar-to-pseudoscalar semileptonic form factors achieve current-component independence through on-shell overlaps, effectively reproducing covariant Bethe-Salpeter zero-mode contributions via an effective operator and enabling direct evaluation of physical timelike transitions without parametrization.

Ho-Meoyng Choi (Kyungpook National University)2026-10-06
⚛️ phenomenology

NNLO NN-jettiness soft function for processes with massless and massive partons

This paper presents the analytical computation of the NNLO QCD contribution to the NN-jettiness soft function for processes involving two massive and an arbitrary number of massless final-state partons, demonstrating the cancellation of divergences and providing a numerical evaluation of the finite remainder using a method based on the inclusive NN-jettiness variable.

Prem Agarwal, Kirill Melnikov, Ivan Pedron, Andrey Pikelner2026-10-06
⚛️ phenomenology

Tomography of light hadron structures: From LCDAs to iTMDs

This paper proposes a new framework combining light-cone distribution amplitudes (LCDAs) with intrinsic transverse momentum distribution functions (iTMDs) to account for soft transverse dynamics in exclusive QCD processes, demonstrating that this approach—particularly when including higher-twist contributions—significantly improves perturbative QCD predictions for the electromagnetic form factors of the pion and proton to better match experimental and lattice data.

Shan Cheng, Jian Chai, Ji-Xin Yu2026-10-06
⚛️ high-energy experiments

Learning Astrophysical Uncertainties in Dark Matter Direct Detection with Simulation-Based Inference

This paper presents a proof-of-concept study demonstrating that Neural Ratio Estimation (NRE) can effectively infer WIMP parameters in direct detection experiments like XENONnT by implicitly marginalizing over astrophysical uncertainties through multi-model training, offering a scalable and robust alternative to traditional profile likelihood methods.

Felix Kahlhoefer, Niklas Reus2026-10-06
⚛️ phenomenology

Functional renormalization group study of the quark-meson model beyond the local potential approximation: Kurganov--Tadmor versus the grid method

This study demonstrates that the Kurganov--Tadmor central scheme and the standard grid method yield virtually identical results for the two-flavor quark-meson model in both local potential and wave function renormalization truncations, while confirming that the low-temperature backbending of the first-order phase boundary persists even when including running wave function renormalization factors.

Zsolt Szép, György Wolf2026-10-06
⚛️ lattice

Phenomenological Estimate for the Longitudinal Unpolarized Structure Function in Semi-inclusive Deep Inelastic Scattering

This paper presents a phenomenological study combining low- and high-transverse-momentum contributions to estimate the longitudinal unpolarized structure function in SIDIS, revealing that its sizable ratio to the transverse structure function (RSIDIS≃0.3R_{\text{SIDIS}} \simeq 0.3) necessitates its inclusion for accurate interpretation of experimental data and motivates dedicated measurements to further constrain this longitudinal contribution.

Alessandro Bacchetta, Matteo Cerutti, Leonard Gamberg, Richard Whitehill2026-10-06