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

Elliptic flow of charm quarks produced in the early stage of pA collisions

This paper demonstrates that charm quarks produced in the early pre-equilibrium glasma stage of high-energy proton-nucleus collisions acquire significant elliptic flow (v2v_2) through interactions with non-Abelian fields, suggesting that pre-hydrodynamic dynamics play a crucial role in the observed heavy-flavor collectivity in small systems.

Gabriele Parisi, Fabrizio Murgana, Vincenzo Greco, Marco Ruggieri2026-03-24
🔭 astrophysics

Probing Atomic Dark Matter with Stellar Streams in Milky Way-Mass Galaxies

This study utilizes a cosmological hydrodynamic simulation to demonstrate that a sub-component of dissipative Atomic Dark Matter enhances the central density of satellite galaxies, thereby delaying the formation of stellar streams, prolonging their star formation, and altering their chemical abundance patterns compared to standard Cold Dark Matter models.

Lucas S. Mandacarú Guerra, Stephanie O'Neil, Mariangela Lisanti, Sandip Roy, Robyn Sanderson, Aritra Kundu, Arpit Arora (…)2026-03-24
🔭 astrophysics

The impact of gamma-ray propagation effects on indirect dark matter searches

This paper demonstrates that neglecting the regeneration of high-energy gamma rays via inverse Compton scattering by secondary electrons and positrons during propagation can lead to significant underestimations of the observed flux from distant dark matter annihilation, thereby necessitating a more detailed treatment of these effects to derive accurate indirect detection limits.

Ignacio Martínez López, Rafael Alves Batista, Miguel A. Sánchez-Conde, Antonio Juan Rubio-Montero2026-03-24
⚛️ nuclear theory

Uncertainty quantification of holographic transport and energy loss for the hot and baryon-dense QGP

This paper presents an open-source C++ implementation of a holographic Einstein-Maxwell-Dilaton model with improved numerical stability to quantify uncertainties in various transport coefficients and energy loss parameters across the QCD phase diagram by propagating lattice QCD constraints via Bayesian sampling.

Musa R. Khan, Ayrton Nascimento, Yumu Yang, Joaquin Grefa, Mauricio Hippert, Jorge Noronha, Claudia Ratti, Romulo Rougem (…)2026-03-24
⚛️ phenomenology

Probing the Higgs Self-Coupling with an XFEL Compton γγ\gamma\gamma Collider at s=380\sqrt{s} = 380 GeV

This study demonstrates that an X-ray free-electron laser Compton γγ\gamma\gamma collider operating at s=380\sqrt{s} = 380 GeV could probe the Higgs self-coupling with a precision of 7% to 12% in the bbbb‾bb\overline{bb} channel by employing boosted decision trees and genetic algorithm optimization, establishing it as a powerful complementary tool to future e+e−e^+e^- and hadron colliders for investigating electroweak symmetry breaking.

Santiago Ampudia Castelazo, Umar Sohail Qureshi, Tim Barklow, Ariel Schwartzman2026-03-24
⚛️ phenomenology

Causality and stability analysis of relativistic spin hydrodynamics: insights from a nonvanishing spin density background

This paper analyzes the stability and causality of relativistic spin hydrodynamics with a nonvanishing spin-density background, demonstrating that while first-order theories exhibit acausal behavior at high wave-vectors, the minimal causal framework resolves this issue by revealing complex, direction-dependent stability conditions that prevent simultaneous satisfaction of stability and causality in certain regimes.

Wei Lu, Yang Zhong, Sheng-Qin Feng2026-03-24
⚛️ phenomenology

Thermal modification of K1(1270)→π+π−K+K_1(1270)\to \pi^+\pi^-K^+ in a hot hadronic medium

This paper investigates the thermal modification of the K1(1270)→π+π−K+K_1(1270)\to \pi^+\pi^-K^+ decay in a hot hadronic medium, finding that the dominant effect is a kinematic suppression of the decay width and significant distortion of Dalitz distributions caused by the temperature-induced reduction of the parent K1K_1 mass, which compresses the available phase space.

Seung-il Nam2026-03-24
⚛️ phenomenology

Light-cone Distribution Amplitudes of Vector Mesons within the Self-Consistent Light-front Quark Model

This paper investigates the twist-2 and twist-3 light-cone distribution amplitudes of vector mesons within a self-consistent light-front quark model, revealing that flavor symmetry breaking significantly impacts twist-3 amplitudes while demonstrating that spin independence emerges in the heavy quark limit, causing the distribution amplitudes of vector and pseudoscalar mesons to converge.

Xiao-Nan Li, Shuai Xu, Qin Chang2026-03-24