hep-ph papers | Gist.Science

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 experiments

Forward hadron production in pp collisions at LHC energies from an event generator based on the color glass condensate framework

This paper utilizes the MC-CGC event generator to demonstrate that LHCb data favors HERA-constrained initial conditions for the rcBK evolution equation and that the dense-dense $k_T$ factorization framework better describes mid-rapidity particle production than the dilute-dense DHJ approach, while also providing predictions for future ALICE FoCal measurements.

Hirotsugu Fujii, Tetsufumi Hirano, Kazunori Itakura, Yasushi Nara, Shujun Zhao2026-05-18

⚛️ phenomenology

Baryon and lepton asymmetry of the Universe in the left-right weak interaction model

This paper proposes that in a left-right weak interaction model, baryon and lepton asymmetries arise during the hadronization of quark-gluon plasma due to CP-violating differences in neutron and antineutron lifetimes caused by right-handed vector boson mixing, while sterile neutrinos account for dark matter and carry a compensating lepton asymmetry.

A. P. Serebrov, O. M. Zherebtsov, A. K. Fomin, R. M. Samoilov, N. S. Budanov2026-05-18

⚛️ phenomenology

Accretion Effects on Primordial Black Hole Reheating Constraints

This paper investigates how accretion on primordial black holes (PBHs) prolongs early matter domination and shifts Big Bang nucleosynthesis constraints on PBH reheating scenarios—derived from isocurvature-induced gravitational waves and merger limits—towards smaller formation masses and initial abundances, with gravitational wave constraints proving more stringent than merger constraints.

Chenhuan Wang2026-05-18

⚛️ high-energy theory

Exact Bulk-Boundary Pairs in AdS/CFT

This paper demonstrates that for a CFT on a flat open solid torus, the two-point function and disjoint entanglement entropy are exactly paired with finite bulk geodesics and entanglement wedge cross-sections, respectively, without requiring large $N$ , strong coupling, or heavy operators, thereby revealing a broader exact-pair structure in AdS/CFT beyond standard singular limits.

Xin Jiang, Peng Wang, Haitang Yang2026-05-18

🌀 nonlinear sciences

Front propagation in non-homogeneous $\phi^4$ model

This paper investigates front propagation in an inhomogeneous $\phi^4$ model, demonstrating that while standard kink-based effective descriptions work well, a modified effective model is required to accurately capture the dynamics of half-kinks representing the decay of unstable states.

Jacek Gatlik, Tomasz Dobrowolski, Dominika Lasa, Panayotis G. Kevrekidis2026-05-18

⚛️ high-energy experiments

Numerical Study of MRW-Type Unintegrated Double Parton Distribution Functions from Non-Factorized DPDFs

This paper presents a numerical study of MRW-type unintegrated double parton distribution functions constructed from non-factorized GS09 collinear DPDFs, comparing the performance and characteristics of double modified KMRW, double virtuality ordered MRW, and a normalization-matched variant to analyze their transverse momentum dependence, normalization properties, and sensitivity to longitudinal correlations.

R. Kord Valeshabadi, S. Rezaie, K. Azizi2026-05-18

⚛️ nuclear experiments

Inclusive charm and bottom quark pair production cross sections at hadron colliders at next-to-next-to-leading-order accuracy

This paper presents a comprehensive study of inclusive charm and bottom quark pair production cross sections across a wide range of collision energies using next-to-next-to-leading-order (NNLO) calculations with the new MaunaKea code, demonstrating that these advanced predictions significantly enhance accuracy and reduce theoretical uncertainties compared to previous NLO results, thereby achieving agreement with experimental data and offering valuable constraints on gluon density and the bottom-quark mass.

David d'Enterria, Felix Hekhorn, Ilkka Helenius, Van Dung Le, Hannu Paukkunen2026-05-18

⚛️ high-energy theory

Walking Sudakov: From Cusp to Octagon

This paper investigates the Sudakov form factor and four-point scattering amplitude in planar $\mathcal{N}=4$ SYM on the Coulomb branch, identifying a novel scaling limit where a "walking" anomalous dimension interpolates between the cusp and octagon anomalous dimensions and proposing an all-loop form for this behavior that depends on new unknown functions of the 't Hooft coupling.

Luis F. Alday, Elisabetta Armanini, Andrei V. Belitsky, Kelian Häring, Alexander Zhiboedov2026-05-18

⚛️ phenomenology

Irreducible Graviton Floor from Reheating

This paper demonstrates that perturbative inflaton decay inevitably generates an irreducible stochastic gravitational-wave background with a characteristic linear frequency spectrum ( $\Omega_{\rm GW}\propto f$ ) fixed by Weinberg's soft-graviton theorem, establishing a fundamental "graviton floor" that reaches amplitudes of $\sim 10^{-17}$ at GHz frequencies and serves as a benchmark to distinguish standard single-field slow-roll inflation from alternative scenarios.

James M. Cline, Yong Xu2026-05-18

⚛️ phenomenology

Improving robustness of jet tagging algorithms with adversarial training: exploring the loss surface

This paper demonstrates that adversarial training enhances the robustness of deep learning-based jet flavor tagging algorithms against input distortions, which serve as a proxy for systematic uncertainties, by leveraging geometric insights from the loss surface to maintain high performance while mitigating model vulnerabilities.

Annika Stein2026-05-15

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hep-ph

Forward hadron production in pp collisions at LHC energies from an event generator based on the color glass condensate framework

Baryon and lepton asymmetry of the Universe in the left-right weak interaction model

Accretion Effects on Primordial Black Hole Reheating Constraints

Exact Bulk-Boundary Pairs in AdS/CFT

Front propagation in non-homogeneous ϕ4\phi^4ϕ4 model

Numerical Study of MRW-Type Unintegrated Double Parton Distribution Functions from Non-Factorized DPDFs

Inclusive charm and bottom quark pair production cross sections at hadron colliders at next-to-next-to-leading-order accuracy

Walking Sudakov: From Cusp to Octagon

Irreducible Graviton Floor from Reheating

Improving robustness of jet tagging algorithms with adversarial training: exploring the loss surface

Front propagation in non-homogeneous $\phi^4$ model