3153 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 presents a path-integral computation demonstrating that excitations of a massive worldsheet axion in QCD strings significantly alter the string breaking rate via a Schwinger-like mechanism by inducing a varying effective tension that can exponentially enhance or suppress quark-antiquark pair nucleation, offering crucial corrections for hadronisation models at colliders.
Using the Chiral quark model and the real-scaling method, this study finds no bound states for fully charmed () or fully bottomed () tetraquarks but predicts specific resonance states that could correspond to the observed and in the charmed sector and a new resonance in the bottomed sector, respectively.
This paper investigates the mechanical properties of pseudoscalar charmonium and bottomonium within the light-front quark model by evaluating gravitational form factors and analyzing their spatial distributions, revealing that while most properties are sensitive to wave function choices near the meson's center, the pressure distribution exhibits a sign-changing node and the force distribution remains positive to support stability.
This paper proposes that combining neutrino detector observations with measurements of the effective number of neutrino species and cosmic microwave background spectral distortions can uniquely identify and constrain dark matter annihilation into neutrinos with MeV-GeV masses, addressing the ambiguity of current neutrino excess signals.
This paper presents VALO1.0, a new set of leading-order and next-to-leading-order real-photon parton distribution functions determined via a global QCD analysis of photon structure function data, which utilizes Monte Carlo replicas to quantify experimental uncertainties and provides open-source tools for their application.
This paper presents a joint dispersive analysis of and processes in the 4.13–4.36 GeV region, demonstrating that a single set of energy-independent parameters successfully describes the data only when including both resonant structures (, , ) and a non-resonant production mechanism subject to coupled-channel final-state interactions.
This paper presents updated Standard Model predictions and comprehensive constraints on the lepton's weak dipole moments using current data from the LHC and -pole observables, while projecting that future FCC-$ee$ and HL-LHC experiments will significantly enhance sensitivity to heavy New Physics, potentially making these moments the dominant probes for such operators.
This study utilizes Planck microwave data to compute 95% confidence-level upper limits on dark matter annihilation and decay by analyzing both total and polarized synchrotron emission from five extragalactic targets, demonstrating that microwave polarimetry serves as a robust and complementary probe for constraining dark matter properties.
This paper challenges the conventional assumption that ultralight dark matter halos universally possess spherically symmetric solitonic cores by demonstrating that strong repulsive interactions between multiple scalar fields can cause immiscibility, leading to diverse ground state phases dependent on mass, density, and interaction strength.
This paper proposes a minimal inelastic Higgs portal dark matter model involving a complex scalar field that simultaneously evades direct detection constraints, explains the Galactic Center gamma-ray excess, and potentially generates a detectable stochastic gravitational wave background via a strong first-order electroweak phase transition.