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.

⚛️ phenomenology

Soft mode dynamics associated with QCD critical point and color superconductivity -- pseudogap, anomalous dilepton production and electric conductivity

This paper utilizes the two-flavor Nambu-Jona-Lasinio model to demonstrate that soft mode dynamics near the QCD critical point and two-flavor color superconductivity critical point induce a pseudogap in quark spectra and significantly enhance electric conductivity and dilepton production rates, offering potential signatures for detection in relativistic heavy-ion collisions.

Masakiyo Kitazawa ad Teiji Kunihiro2026-04-21

⚛️ phenomenology

Three-body decay $\phi\to\pi^+\pi^-\pi^0$ with Omnès-type final-state interactions

This paper investigates the $\phi\to\pi^+\pi^-\pi^0$ decay within an effective-Lagrangian framework incorporating a constant on-shell Omnès factor to model leading $\pi\pi$ rescattering, achieving a theoretical width close to experimental values while highlighting the need for a fully $s$ -dependent dispersive analysis to resolve remaining discrepancies in Dalitz plot projections.

Seung-il Nam, Jung Keun Ahn2026-04-21

⚛️ phenomenology

Probing Cosmic-Ray-Boosted and Supernova-Sourced Sub-GeV Dark Matter with Paleo-Detectors

This paper demonstrates that paleo-detectors using olivine targets can achieve unprecedented sensitivity to sub-GeV dark matter accelerated by cosmic rays and supernovae, enabling the detection of nuclear recoil tracks over geological timescales and probing parameter regions inaccessible to current and near-future experiments.

Xiaoyong Chu, Yue-Lin Sming Tsai, Mei-Wen Yang2026-04-21

⚛️ phenomenology

A Type-I Seesaw Framework with Non-Holomorphic Modular Symmetry

This paper proposes a Type-I seesaw model with non-holomorphic modular symmetry that successfully accommodates normal hierarchy neutrino data with a $\chi^2_{min}$ of 7.06 and predicts specific constraints on mixing angles and CP violation, while ruling out the inverted hierarchy scenario.

Cheshta, Priya, Suneel Dutt, B. C. Chauhan2026-04-21

⚛️ phenomenology

Sexaquarks and $H$ dibaryons in the $uuddss$ system: a comparison within a constituent quark model

Using a constituent quark model and diffusion Monte Carlo method, this study compares fully antisymmetric sexaquarks and baryon-baryon-like $H$ dibaryons in the $uuddss$ system, finding that only the latter configuration yields loosely bound states near the two-baryon threshold while all other structures remain compact.

M. C. Gordillo2026-04-21

⚛️ nuclear theory

Questioning MAMI's recent determination of $B_{\Lambda}({_{\Lambda}^3}{\rm H})$

This paper challenges the recent MAMI collaboration's determination of the hypertriton binding energy by proposing that the observed sharp pion-momentum line instead originates from the weak decay of the ground state of hyperhelium-7 into lithium-7.

Avraham Gal2026-04-21

⚛️ high-energy experiments

Two-body charmed anti-charmed baryonic $B$ decays

This paper investigates two-body charmed anti-charmed baryonic $\overline B$ decays using a topological amplitude approach to decompose various final states, model significant SU(3) flavor symmetry breaking effects, and provide predictions for decay rates while highlighting the substantial uncertainties arising from current limitations in understanding these symmetry-breaking mechanisms.

Chun-Khiang Chua2026-04-21

⚛️ phenomenology

Looking for Lights from the Darkness: Signals from MeV-scale Solar Axion-like Particles

This paper proposes a novel detection method for MeV-scale solar axion-like particles by analyzing the unique angular and spectral distributions of their decay photons, demonstrating that future space and South Pole terrestrial experiments could probe photon couplings significantly beyond current supernova limits.

Yu-Cheng Qiu, Yongchao Zhang2026-04-21

⚛️ high-energy theory

Classical and quantum evolution of inflationary fluctuations

This paper demonstrates that even when classical and quantum dynamics are aligned at a specific moment during inflation, their correlation functions diverge exponentially by the end of inflation due to interactions, a difference illustrated through the bispectrum and tensor power spectrum that also clarifies the absence of poles in the scalar bispectrum from finite-time classical evolution.

Guillermo Ballesteros, Jesús Gambín Egea, Alejandro Pérez Rodríguez2026-04-21

⚛️ phenomenology

New Physics in inclusive $\bar{B} \to X_c \ell \bar{\nu}$ decays

This paper presents the first global phenomenological fit of inclusive $\bar{B} \to X_c \ell \bar{\nu}$ decays to all available experimental data within the Weak Effective Theory, incorporating generic dimension-six New Physics and higher-order corrections, and finds no significant evidence for New Physics while establishing competitive bounds on the relevant Wilson coefficients.

Alexandre Carvunis, Gael Finauri, Paolo Gambino, Martin Jung, Sandro Mächler2026-04-21

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hep-ph

Soft mode dynamics associated with QCD critical point and color superconductivity -- pseudogap, anomalous dilepton production and electric conductivity

Three-body decay ϕ→π+π−π0\phi\to\pi^+\pi^-\pi^0ϕ→π+π−π0 with Omnès-type final-state interactions

Probing Cosmic-Ray-Boosted and Supernova-Sourced Sub-GeV Dark Matter with Paleo-Detectors

A Type-I Seesaw Framework with Non-Holomorphic Modular Symmetry

Sexaquarks and HHH dibaryons in the $uuddss$ system: a comparison within a constituent quark model

Questioning MAMI's recent determination of BΛ(Λ3H)B_{\Lambda}({_{\Lambda}^3}{\rm H})BΛ​(Λ3​H)

Two-body charmed anti-charmed baryonic BBB decays

Looking for Lights from the Darkness: Signals from MeV-scale Solar Axion-like Particles

Classical and quantum evolution of inflationary fluctuations

New Physics in inclusive Bˉ→Xcℓνˉ\bar{B} \to X_c \ell \bar{\nu}Bˉ→Xc​ℓνˉ decays

Three-body decay $\phi\to\pi^+\pi^-\pi^0$ with Omnès-type final-state interactions

Sexaquarks and $H$ dibaryons in the $uuddss$ system: a comparison within a constituent quark model

Questioning MAMI's recent determination of $B_{\Lambda}({_{\Lambda}^3}{\rm H})$

Two-body charmed anti-charmed baryonic $B$ decays

New Physics in inclusive $\bar{B} \to X_c \ell \bar{\nu}$ decays