5582 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 proposes an Affleck-Dine mechanism with Q-ball formation that generates large primordial lepton flavor asymmetries with vanishing total lepton number, thereby evading cosmological constraints while offering a unified explanation for the baryon asymmetry, the QCD transition, sterile neutrino dark matter, and the helium-4 anomaly.
This paper presents a unified framework within the X-SCAPE code that utilizes the SMASH transport model to generate event-by-event initial conditions for hydrodynamic simulations of heavy-ion collisions at finite densities, incorporating a 4D lattice-QCD equation of state and generalized out-of-equilibrium corrections to study conserved charge fluctuations in the Beam Energy Scan program.
This paper utilizes low-energy electronic recoil data from the PandaX-4T and XENONnT experiments to derive robust exclusion limits on active-sterile neutrino transition magnetic moments, demonstrating the unique capability of direct detection experiments to probe solar neutrino up-scattering across all neutrino flavors and previously unexplored parameter spaces.
Using the Born-Oppenheimer approximation within a dynamical diquark model, this study identifies the states as compact tetraquarks composed of axial-vector diquark pairs, supported by calculated root-mean-square radii significantly smaller than 1 fm.
This paper demonstrates that while background pion-emission processes can significantly modify cross sections in reactions, the Deeply Virtual Compton Scattering excitation of the Roper resonance remains a measurable and valuable tool for extracting nucleon transition Generalized Parton Distributions and probing the internal structure of excited states.
This paper presents state-of-the-art theoretical predictions for the electromagnetic Dirac form factors of hyperons by computing next-to-leading-order QCD corrections within the hard-collinear factorization framework and combining them with lattice QCD-determined distribution amplitudes.
This paper discusses the resummation of small-spin singularities in the anomalous dimensions of twist-two operators by exploring the interplay between Gross-Neveu-Yukawa and Gross-Neveu models, thereby enabling predictions for higher-loop behaviors and revealing connections to conformal Regge theory and detector operators.
This paper derives a one-loop factorization formula connecting the leading-twist QCD light-cone distribution amplitude (LCDA) to the boosted HQET LCDA of the baryon by utilizing the method-of-regions to simplify perturbative matching calculations, thereby providing a crucial step toward future lattice QCD computations of heavy baryon LCDAs.
This paper pragmatically constrains the initial states of relic gravitons at the moment their wavelengths cross the comoving Hubble radius, concluding that while non-vacuum states are marginally permitted for low-frequency modes, the intermediate and high-frequency spectrum (kHz to THz) is dominated by vacuum-produced gravitons with negligible initial state contributions.
This paper proposes that a supercooled first-order phase transition in a hidden sector with spontaneously broken gauge symmetry can generate a gravitational wave background strong enough to explain recent Pulsar Timing Array observations while remaining consistent with Big Bang Nucleosynthesis constraints.