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.

⚛️ high-energy experiments

Implications of portal vector-like lepton on associated Higgs production at a multi-TeV muon collider

This paper investigates a portal vector-like lepton extension of the Standard Model, demonstrating that a multi-TeV muon collider can significantly enhance the associated production of the Higgs boson with a dark photon (hγdh\gamma_d) compared to the standard hZhZ channel, thereby offering a promising avenue to probe dark matter phenomenology, constrain dark photon parameters, and address the muon g−2g-2 anomaly.

Krishna Tewary, Sanjoy Biswas, Shivam Verma2026-06-23
⚛️ phenomenology

Probing the Phenomenology of Dark Matter from Decoupled Freeze-Out

This paper investigates a dark matter model featuring a scalar-pseudoscalar mediator superposition and a decoupled freeze-out mechanism, demonstrating through coupled Boltzmann equations that a viable parameter space exists which satisfies relic density requirements while evading standard CMB constraints and remaining consistent with indirect detection, CMB, and BBN bounds.

Geneviève Bélanger, Aoife Bharucha, Sreemanti Chakraborti, Rashidul Islam, Sophie Mutzel2026-06-23
⚛️ high-energy theory

General Four-Loop Beta Function for Scalar-Fermion Theories in Three Dimensions

This paper presents general four-loop beta functions and anomalous field dimensions for renormalizable scalar-fermion theories in three dimensions, deriving supersymmetry constraints, identifying a new perturbatively controlled IR fixed point in the large-NN limit, and providing comprehensive numerical and analytic results for the required four-loop master integrals.

York Schröder, Emmanuel Stamou, Tom Steudtner, Max Uetrecht2026-06-23
⚛️ phenomenology

Finite V2ΔV_{\rm 2\Delta} puzzle in low-multiplicity pp collisions from ultra-long-range azimuthal correlations in the string-shoving model

This study utilizes the PYTHIA8 string-shoving model to demonstrate that ultra-long-range azimuthal correlations in low-multiplicity pp collisions are most sensitive to dijet events (Nmpi=1N_{\rm mpi}=1) and decrease with multiplicity, suggesting that string shoving explains low-multiplicity data while hydrodynamics dominates at higher multiplicities, with flattenicity proposed as a superior estimator for mitigating non-flow effects.

Antonio Ortiz, Dushmanta Sahu, Gyula Bencedi2026-06-23
⚛️ phenomenology

Renormalization group evolution induced breaking of μ−τμ-τ reflection symmetry in MSSM with effects of variation of $tanβ$

This paper investigates how renormalization group evolution from a high flavor symmetry scale to the electroweak scale breaks μ\mu-τ\tau reflection symmetry in the MSSM, specifically analyzing the impact of varying tan⁡β\tan\beta on neutrino observables for both normal and inverted mass orderings.

Chandan Kumar Borah, Chandan Duarah2026-06-23
⚛️ high-energy experiments

Correlating Resonant Di-Higgs and Tri-Higgs Production to H→VVH\to VV in the 2HDM

This paper demonstrates that in the Two-Higgs-Doublet Model with a heavy scalar HH, the branching ratios for resonant di-Higgs (H→hhH \to hh) and tri-Higgs (H→hhhH \to hhh) production are directly correlated with the H→VVH \to VV decay rate solely by the scalar mass, predicting a fixed ratio of approximately 9.4 between H→hhH \to hh and H→ZZH \to ZZ for masses between 500 GeV and 1 TeV, thereby establishing H→hhH \to hh as the primary probe for heavy scalar resonances at current and future colliders.

Guglielmo Coloretti, Andreas Crivellin, Howard E. Haber2026-06-23