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

Deciphering the nature of X(2300)X(2300) with the PACIAE model

Using the PACIAE 4.0 model, this study proposes that the newly observed X(2300)X(2300) particle could be a PP-wave ssˉs\bar{s} meson, an SS-wave tetraquark, or a hadro-strangeonium state, and distinguishes these candidates by calculating their production rates and kinematic distributions in e+ee^+e^- collisions.

Jian Cao, Wen-Chao Zhang, Jin-Peng Zhang, Bo Feng, An-Ke Lei, Zhi-Lei She, Hua Zheng, Dai-Mei Zhou, Yu-Liang Yan, Ben-Ha (…)2026-02-13
⚛️ nuclear theory

Charm quark evolution in the early stages of heavy-ion collisions

This study investigates the impact of early-time charm quark dynamics on D-meson observables in Pb+Pb collisions at sNN=5.02\sqrt{s_{NN}}=5.02 TeV using the IP-Glasma+MUSIC+UrQMD framework and finds that despite significant momentum broadening in the pre-equilibrium stage, the nuclear modification factor (RAAR_{AA}) and elliptic flow (v2v_2) of D-mesons remain only weakly sensitive to these early interactions.

Mayank Singh, Manu Kurian, Björn Schenke, Sangyong Jeon, Charles Gale2026-02-13
⚛️ high-energy experiments

Studies of beauty hadron and non-prompt charm hadron production in pp collisions at s\sqrt{s}=13 TeV within a transport model approach

This study employs a refined AMPT transport model with adjusted beauty quark mass and flavor-specific coalescence parameters to successfully reproduce LHCb and ALICE data on beauty and non-prompt charm hadron production in 13 TeV $pp$ collisions, offering new insights into heavy quark dynamics and hadronization mechanisms in small collision systems.

Jialin He, Xinye Peng, Xiaoming Zhang, Liang Zheng2026-02-13
⚛️ phenomenology

Non-Holomorphic A4A_4 Modular Symmetry in Type-I Seesaw: Implications for Neutrino Masses and Leptogenesis

This paper proposes a minimal Type-I seesaw model governed by non-holomorphic A4A_4 modular symmetry, where neutrino masses and mixings are determined solely by a modulus parameter, successfully accommodating oscillation data and generating the observed baryon asymmetry via thermal leptogenesis while predicting a testable effective Majorana mass for future neutrinoless double-beta decay experiments.

Swaraj Kumar Nanda, Maibam Ricky Devi, Sudhanwa Patra2026-02-13
⚛️ phenomenology

Lesser Green's Function and Chirality Entanglement Entropy via the In-Medium NJL Model

Using the in-medium Nambu-Jona-Lasinio model and the lesser Green's function, this study demonstrates that von Neumann chirality entropy serves as a distinct thermodynamic measure of chiral quantum decoherence with a unique scaling exponent, revealing that chiral symmetry restoration and chiral decoherence are separate phenomena not fully captured by conventional order parameters.

Seung-il Nam2026-02-13