5626 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.
Motivated by recent BESIII measurements, this paper presents the first perturbative QCD analysis of the -hyperon electric dipole moment, deriving a factorization formula that links it to quark dipole interactions and highlighting its unique sensitivity to the strange-quark chromo-electric dipole moment as a complementary probe to the neutron EDM.
These lecture notes provide a graduate-level introduction to the strong CP problem and QCD axion physics from an effective field theory perspective, covering the construction of chiral EFT, the derivation of CP-odd observables, generalizations to various gauge theories, critiques of alternative solutions, and the standard Peccei-Quinn mechanism.
This paper investigates realistic physical termination criteria for cosmic-ray backtracing in the atmosphere, demonstrating that the simplified sharp-boundary approximation should be replaced by altitude-dependent thresholds (at least 50 km for protons and higher for heavy nuclei) determined by the combined effects of Bethe-Bloch energy loss and hard scattering interactions.
This paper utilizes the Schwinger--Keldysh formalism to demonstrate that standard rate equations for nonequilibrium cascade dynamics are controlled Markovian approximations of a more fundamental multi-component system, where retaining the finite lifetimes of intermediate reservoirs reveals non-Markovian memory effects that govern delayed, history-dependent formation processes.
To celebrate the 50th anniversary of the J/ψ discovery, this paper reviews the progress of QCD-inspired quark potential models derived from charmonium spectra and emphasizes the critical role of unquenching dynamics, multiquark components, and exotic states in advancing our understanding of hadron structure and spectroscopy.
This paper presents a method for systematically constructing canonical differential equations to compute Feynman integrals associated with complex geometries like elliptic curves and Calabi-Yau varieties, using the two-loop sunrise integral as a primary example to demonstrate the approach beyond multiple polylogarithms.
This paper reconstructs the historical development of Fermi's statistics, tracing how Enrico Fermi's early interest in entropy and the limitations of Sommerfeld's quantization led him to apply the Exclusion Principle to non-interacting particles, thereby establishing the statistical framework for an ideal monatomic gas.
This paper presents a simplified EP model featuring two chiral electron supermultiplets to demonstrate how mass terms constrain Exotic Invariants and to propose Completion Terms, serving as a foundational example for understanding the more complex Exotic Model within the Supersymmetric Standard Standard Model.
This paper demonstrates that in a two-scalar-field model of cosmological first-order phase transitions, thermal fluctuations of a coupled scalar field induce patchy background modulations that cause bubble walls to undergo alternating acceleration and deceleration, resulting in a reduced time-averaged propagation speed and distinct deflagration, detonation, or hybrid profiles that significantly impact gravitational wave and baryogenesis predictions.
This paper demonstrates that the High Luminosity LHC has sufficient sensitivity to exclude the remaining allowed parameter space of a generic Two Higgs Doublet Model with right-handed neutrino couplings, which was proposed to explain the observed anomalies via a charged Higgs boson.