3231 papers
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.
This paper demonstrates that within a general low-energy effective field theory, a massless complex scalar pair coupled via a purely left-handed vector current is the unique nonstandard invisible sector capable of exactly mimicking the Standard Model's Michel distribution in lepton decays, while all other higher-spin or interaction scenarios remain distinguishable.
This paper investigates the physical constraints imposed by energy-momentum conservation on ortho-positronium three-photon decays and presents a closed-form analytical method for reconstructing the annihilation vertex based on energy measurements.
This paper presents an iterative algorithm for the symbolic reduction of multi-loop Feynman integrals by reformulating integration-by-parts identities as differential equations for sector-wise generating functions within a non-commutative algebra, thereby unifying the derivation of reduction rules and completeness criteria.
This paper identifies a new spin-flavor entanglement structure in decays that encodes weak phase information, establishing a quantitative relationship where the precision of extracting the CKM angle scales inversely with the Wootters concurrence of the entangled system.
This paper employs a light-front Hamiltonian analysis to demonstrate that nucleon-pentaquark mixing is governed by strict symmetry selection rules and chiral structure, resulting in a highly sparse configuration where only six specific channels contribute to a total five-quark probability of approximately 29%.
This paper applies mechanistic interpretability techniques to a Particle Transformer for top quark tagging, revealing that a sparse six-head circuit effectively replicates the full model's performance by utilizing an energy correlator-based representation to identify 2-prong substructure, thereby demonstrating that gradient descent can rediscover physically meaningful features in jet physics without supervision.
This paper proposes a Higgs-portal spin-1 dark photon dark matter model, augmented by a light CP-even scalar mediator to induce Sommerfeld enhancement, which simultaneously explains the observed relic abundance, evades direct-detection constraints via -wave suppression, and accounts for a recent Galactic halo gamma-ray excess in the 420 GeV mass range through enhanced annihilation.
This paper introduces a novel Statistical Reconstruction method that bypasses conventional Gaussian assumptions to directly extract single-particle emission sources from rare particle yields via event-by-event analysis, successfully demonstrating its application to reconstructing the source in $pp$ collisions with a systematic uncertainty of approximately 13%.
This paper establishes a predictive framework for controlled penumbral inflation by demonstrating that local branch data in long monodromic valleys determine the existence of inflationary plateaus, thereby identifying a specific analytic family with an exactly solvable two-field attractor that remains predictive under higher-order corrections.
This paper investigates the LHC phenomenology of composite Higgs models with an SU(2)SU(2) global symmetry, demonstrating that viable scenarios exist where two neutral and one charged spin-1 resonances, which mix with Standard Model vector bosons, could be singly produced with masses as low as approximately 1.5 TeV.