3277 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 investigates the hadronic molecule using QCD sum rules, predicting its mass to be MeV and its total width to be MeV, which indicates that the state decays strongly into ordinary mesons via dominant fall-apart and subdominant annihilation mechanisms.
This paper establishes a systematic effective field theory framework using chiral symmetry to connect ultraviolet interactions to low-energy hadronic observables, demonstrating that while baryon-antibaryon oscillations probe a limited subset of operators, dinucleon decay offers a broader sensitivity to previously unexplored channels and parameter space.
This paper demonstrates that supersymmetric extensions of the Standard Model can facilitate the formation of asteroid-mass Primordial Black Holes as a viable dark matter candidate by transiently softening the early Universe's equation of state, a mechanism that remains consistent with observational constraints for heavy supersymmetric masses but fails within the Standard Model.
This paper resolves the puzzle of black hole-induced vacuum decay by demonstrating that while small black holes can initially generate highly-boosted true vacuum bubbles, radiative dissipative losses inevitably decelerate them, ensuring the decay rate remains exponentially suppressed rather than runaway.
This paper proposes a framework to reinterpret supernova time-of-flight limits on neutrino mass as constraints on neutrino millicharge by leveraging their shared energy dependence, deriving bounds ranging from for SN1987A to for future Galactic supernovae using a line-of-sight-dependent magnetic delay kernel.
This paper presents recent advancements in precision high-energy collider physics by applying IR-improvement techniques to unintegrable infrared singularities through amplitude-based resummation within the Standard Model framework, offering new results and identifying emerging issues for observables at facilities such as the LHC, FCC, and various future lepton colliders.
This study shows that tidal heating of star clusters in halos by fuzzy dark matter, which becomes the dominant mechanism when the de Broglie wavelength exceeds the cluster size, is significantly suppressed by reduced soliton mass and tidal stripping, necessitating careful consideration of halo structure and environment to precisely constrain the dark matter particle mass.
This paper reports high-precision absolute frequency measurements of 2S-nS (n=8, 9, 10) two-photon transitions in cryogenic atomic hydrogen, yielding a proton charge radius of 0.8433(31) fm and a Rydberg frequency that align well with CODATA 2022 recommendations.
This article demonstrates that extending the standard model of cosmology with self-interacting dark radiation and a running spectral index function during inflation significantly relaxes constraints on additional relativistic degrees of freedom and reduces the Hubble tension to below 2 when confronted with data from ACT DR6, Planck, DESI DR2, and Pantheon+.
This paper presents a unified constituent-gluon description of heavy hybrid hadrons within the Born-Oppenheimer framework, deriving light-front wave functions for $ccg$ and $qqqg$ systems to compute their gluon parton distribution functions.