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

High Energy Neutrinos, Gravitational Waves, and Dark Matter from a Cosmological First Order Phase Transition

This paper proposes a multimessenger framework where superheavy dark matter produced during a cosmological first-order phase transition via a filtered mechanism simultaneously explains observed high-energy neutrino events and generates a stochastic gravitational wave background, with specific mass ranges linking the signals to current or future observatories like IceCube, Cosmic Explorer, and KM3NeT.

James M. Cline, Savas Stoica, Yong Xu2026-10-05
⚛️ phenomenology

SU(N)SU(\mathcal{N}) baryon formation in the early Universe and dark matter

This paper demonstrates that in an SU(N)SU(\mathcal{N}) gauge theory with large N\mathcal{N}, a "Casimir bottleneck" during confinement strongly suppresses the formation of stable neutral baryons relative to mesons, resulting in a relic density so low that saturating the dark matter energy density would require baryon masses that violate the unitarity bound on annihilation cross sections.

Luca Di Luzio, Samuele Di Valeriano, Enrico Nardi2026-10-05
⚛️ general relativity

Multi-Band Constraints on Cosmic Strings: Unifying Harmonic and Burst Spectra

This paper unifies the discrete harmonic and continuous burst formalisms for cosmic-string gravitational-wave backgrounds to enable consistent multi-band Bayesian inference, revealing that the harmonic approach significantly tightens LIGO-Virgo-KAGRA constraints on string tension and rules out most loop-distribution models as explanations for the NANOGrav and EPTA common signals.

Hansong Zhang, Huai-Ke Guo, Mairi Sakellariadou, Fengwei Yang, Yue Zhao2026-10-05
⚛️ phenomenology

Distinguishing the origin of cosmic birefringence: dark energy, dark matter, and neutrino asymmetry

This paper demonstrates that the detailed shape of the cosmic microwave background's EBEB power spectrum, particularly its suppression at low multipoles and high-frequency evolution, can distinguish between cosmic birefringence generated by dark energy, axion dark matter, and neutrino asymmetry, enabling future experiments like LiteBIRD and the Simons Observatory to identify the specific physical origin of this phenomenon.

Lu Yin, Eiichiro Komatsu2026-10-05
⚛️ phenomenology

Kinetic Equilibrium between SIMP Dark Matter and Radiation via Internal Bremsstrahlung

This paper proposes that internal Bremsstrahlung processes can establish kinetic equilibrium and facilitate energy dissipation for Strongly Interacting Massive Particle (SIMP) dark matter during freeze-out, a mechanism demonstrated through numerical solutions of Boltzmann equations within a Sp(4)cSp(4)_c dark-color model and applicable to vector dark matter scenarios.

Xiaoyong Chu, Ajay Kaladharan, Yassine El Mohtadi2026-10-05
⚛️ high-energy experiments

Entanglement-sensitive observables in e+e−→τ+τ−e^+e^- \to \tau^+\tau^- at STCF: a detector-level feasibility study

This study demonstrates the detector-level feasibility of measuring quantum entanglement and non-classical spin correlations in e+e−→τ+τ−e^+e^- \to \tau^+\tau^- events at the Super Tau-Charm Facility (STCF) using ρρ\rho\rho and πρ\pi\rho decay channels, projecting high-precision measurements of concurrence and Bell-sensitive observables with an integrated luminosity of 1 ab−11~\mathrm{ab}^{-1}.

Chentao Bao, Xi Tao, Hai Chen, Lailin Xu, Xiaorong Zhou, Mingyi Liu2026-10-05
⚛️ phenomenology

Electroweak Transitions of Hyperons and Charmed Baryons: Opportunities and Prospects

This paper presents a phenomenological overview of electroweak transitions in hyperons and charmed baryons, emphasizing the synergy between lattice QCD, experiment, and theory to extract fundamental parameters like ∣Vus∣|V_{us}|, resolve tensions such as the Ξc→Ξ\Xi_c \to \Xi puzzle, and search for non-standard interactions.

Patrik Adlarson, Constantia Alexandrou, Simone Bacchio, Varvara Batozskaya, Johan Bijnens, Alexandre Brea Rodriguez, Ger (…)2026-10-05
⚛️ phenomenology

Third-Order Logarithmic Resummation for Jet-Vetoed Higgs Production

This paper presents the first third-logarithmic-order prediction for the Higgs jet-vetoed cross section at the LHC, which combines next-to-next-to-next-to-leading order calculations with next-to-next-to-next-to-leading logarithmic resummation to achieve a residual perturbative uncertainty of approximately 3%, marking a significant milestone for precision measurements in the high-luminosity phase.

Samuel Abreu, Jonathan R. Gaunt, Pier Francesco Monni, Luca Rottoli, Robert Szafron2026-10-05
⚛️ phenomenology

Higgsino dark matter compatible with the LUX-ZEPLIN high-energy nuclear-recoil event and IceCube constraints

This paper demonstrates that Higgsino dark matter with masses ranging from approximately 2 TeV to hundreds of TeV and mass splittings between 350 and 525 keV can simultaneously explain the 248 keV nuclear-recoil event observed by LUX-ZEPLIN while remaining consistent with IceCube's null results on dark matter annihilation in the Sun, particularly when accounting for uncertainties in solar cooling mechanisms and potential enhancements from the Large Magellanic Cloud.

Katherine Freese, Dionysios P. Theodosopoulos2026-10-05