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

Probing the Effective HZ $\gamma$ Coupling via H $\gamma$ Production at FCC-ee

This study demonstrates that analyzing $e^+e^-\rightarrow H\gamma$ production at the FCC-ee across multiple running scenarios offers a novel, direct method to constrain the effective $HZ\gamma$ coupling with 15% precision and resolve sign ambiguities, providing complementary sensitivity to decay-based measurements and global SMEFT fits.

Lena Herrmann, Sara Aumiller, Ken Mimasu, Louis Portalès, Michele Selvaggi2026-09-21

⚛️ high-energy theory

On asymptotically and anomaly-free SU(N) chiral gauge theories for arbitrarily large N

This paper analyzes the global symmetry structures and computes 't Hooft anomalies—including those arising from fractional flux backgrounds—for a large catalog of asymptotically free and anomaly-free SU(N) chiral gauge theories, using these results to constrain and propose specific infrared behaviors consistent with both ordinary and fractional flux anomaly matching.

Kort Beck, Patrick Draper2026-09-21

⚛️ nuclear theory

Jet transport coefficients associated with fermionic two-point correlators in a weakly-coupled plasma

This paper derives a closed-form expression for new jet-medium transport coefficients ( $\hat{\mathcal{F}}_i$ ) associated with fermionic two-point correlators in a weakly-coupled plasma by computing leading-order $2\to2$ scattering rates, revealing significant deviations from leading-logarithmic approximations and enabling their application in Monte Carlo simulations to probe flavor hydrodynamization dynamics.

Shay Duddy, Lukas Opitz, Amit Kumar, Gojko Vujanovic2026-09-21

⚛️ phenomenology

FIMP dark matter in the scotogenic model at low-reheating temperatures

This paper investigates the phenomenology of singlet fermion dark matter produced via the freeze-in mechanism in the scotogenic model under low-reheating temperature scenarios, demonstrating that such conditions significantly reshape the viable parameter space while remaining consistent with lepton flavor violation and direct detection constraints.

Robinson Longas, Andrés Rivera, David Suarez2026-09-21

⚛️ high-energy experiments

Endpoint anatomy of the baryon--meson sum rule in $b\to s\nu\bar\nu$

This paper investigates the origin of baryon-meson sum rules in $b\to s\nu\bar\nu$ decays by analyzing helicity amplitudes at kinematic endpoints, revealing that while the sum rule arises from short-distance structure, its coefficient is a nontrivial integrated quantity shaped by hadronic dynamics rather than a local heavy-quark symmetry.

Syuhei Iguro2026-09-21

⚛️ phenomenology

Anomalous Matter Potentials in Earth's Inner Core: A Phenomenological Probe of Dark Matter and Light Sterile Neutrinos

This paper demonstrates that high-statistics atmospheric neutrino telescopes can detect percent-level anomalous matter potentials localized in Earth's inner core—motivated by dark matter or light sterile neutrinos—by observing significant distortions in neutrino oscillation probabilities and distinct neutrino-antineutrino asymmetries that deviate from Standard Model predictions.

Bipin Singh Koranga, Vivek Kumar Nautiyal2026-09-21

⚛️ high-energy theory

Complex scalar field thick branes: stability of linear perturbation and evolution of scalar Kaluza-Klein modes coupled with gravity

This paper investigates the stability and localization properties of Minkowski, de Sitter, and anti-de Sitter thick branes generated by a complex scalar field, demonstrating that while the system is stable against linear perturbations and supports localized graviton or scalar zero modes depending on the spacetime geometry, the scalar sector exhibits temperature-dependent sub-brane formation and a rich spectrum of Kaluza-Klein modes including metastable resonances and discrete bound states.

Wang-Long Dong, Heng Guo, Qun Wei, Yong-Tao Lu2026-09-21

⚛️ phenomenology

Localized CP violation driven by cross-channel interference between $\overline{K}_0^*(1430)^0$ and $\rho(770)^0$ in $B^{\pm}\rightarrow K^{\pm}\pi^{+}\pi^{-}$ decays

This paper attributes a localized anomaly in the CP asymmetry of $B^{\pm} \rightarrow K^{\pm} \pi^{+} \pi^{-}$ decays to cross-channel interference between the $\overline{K}_0^*(1430)^0$ and $\rho(770)^0$ resonances, where rapid variations in the relative strong phase within their overlapping region on the Dalitz plot significantly reshape the local CP profile.

Jin-Zhao Guo, Gang Lü2026-09-21

⚛️ high-energy experiments

Discriminating baryonium and final-state-interaction interpretations of $X(2356)$

This paper reanalyzes the BESIII $X(2356)$ enhancement by comparing baryonium and final-state-interaction (FSI) interpretations, concluding that an energy-dependent FSI description offers the best balance of fit quality and model complexity while highlighting the sensitivity of pole extraction to amplitude parametrization.

Bing-Dong Wan, Sheng-Qi Zhang2026-09-21

⚛️ phenomenology

Leptogenesis and Planck-scale black hole remnants in a Pati-Salam cosmology

This paper investigates a minimal Pati-Salam cosmology where primordial black hole evaporation drives leptogenesis and produces Planck-scale dark matter remnants, revealing that non-thermal leptogenesis and remnant dark matter are mutually exclusive but can be simultaneously realized through a specific thermal regime with an initial black hole mass near $10^6$ g, yielding testable predictions for stochastic gravitational wave backgrounds and effective neutrino species.

Arnab Chaudhuri, Erdenebulgan Lkhagvadorj, Satyabrata Mahapatra2026-09-21

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hep-ph

Probing the Effective HZγ\gammaγ Coupling via Hγ\gammaγ Production at FCC-ee

On asymptotically and anomaly-free SU(N) chiral gauge theories for arbitrarily large N

Jet transport coefficients associated with fermionic two-point correlators in a weakly-coupled plasma

FIMP dark matter in the scotogenic model at low-reheating temperatures

Endpoint anatomy of the baryon--meson sum rule in b→sννˉb\to s\nu\bar\nub→sννˉ

Anomalous Matter Potentials in Earth's Inner Core: A Phenomenological Probe of Dark Matter and Light Sterile Neutrinos

Complex scalar field thick branes: stability of linear perturbation and evolution of scalar Kaluza-Klein modes coupled with gravity

Localized CP violation driven by cross-channel interference between K‾0∗(1430)0\overline{K}_0^*(1430)^0K0∗​(1430)0 and ρ(770)0\rho(770)^0ρ(770)0 in B±→K±π+π−B^{\pm}\rightarrow K^{\pm}\pi^{+}\pi^{-}B±→K±π+π− decays

Discriminating baryonium and final-state-interaction interpretations of X(2356)X(2356)X(2356)

Leptogenesis and Planck-scale black hole remnants in a Pati-Salam cosmology

Probing the Effective HZ $\gamma$ Coupling via H $\gamma$ Production at FCC-ee

Endpoint anatomy of the baryon--meson sum rule in $b\to s\nu\bar\nu$

Localized CP violation driven by cross-channel interference between $\overline{K}_0^*(1430)^0$ and $\rho(770)^0$ in $B^{\pm}\rightarrow K^{\pm}\pi^{+}\pi^{-}$ decays

Discriminating baryonium and final-state-interaction interpretations of $X(2356)$