interactions are weak near threshold in QCD
Using lattice QCD to study coupled-channel scattering, the authors find that interactions are weak near threshold and show no evidence of bound states or resonances between the state and the threshold.
3413 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.
Using lattice QCD to study coupled-channel scattering, the authors find that interactions are weak near threshold and show no evidence of bound states or resonances between the state and the threshold.
This paper explores a Dirac model featuring a new gauge boson and a vector-like fermion dark matter candidate, demonstrating that the model's parameter space is highly constrained by cosmological and experimental bounds yet remains predictive and testable in future searches.
Using the QCD sum rule method, this paper investigates the properties of two heavy-quark hadronic molecules, and , predicting their masses and relatively broad decay widths to demonstrate their instability against dissociation.
This paper uses Lyman- forest measurements of the intergalactic medium temperature to establish new, complementary constraints on long-lived dark sector particles that deposit energy into the IGM, providing updated limits that work alongside Cosmic Microwave Background data.
This paper presents the first complete NNNLO QCD corrections to the top-quark decay width and -helicity fractions, providing high-precision theoretical predictions that meet the accuracy requirements of future particle colliders.
This paper demonstrates that the long-standing discrepancy between stochastic inflation and standard perturbation theory can be resolved by accounting for the virtual loop effects of super-long-wavelength modes, which induce specific corrections to the Langevin and Fokker-Planck equations.
This paper proposes an effective field theory (EFT) framework based on an extended type-X Two Higgs Doublet Model to explain secluded dark matter, demonstrating that the observed relic abundance can be achieved through both freeze-out and freeze-in mechanisms via dimension-6 operators while remaining consistent with BBN and gamma-ray constraints.
This paper investigates the sensitivity of multi-particle symmetric and asymmetric cumulants to shear and bulk viscosities, resonance decays, and hadronic interactions in Au+Au collisions at = 200 GeV using a hybrid hydrodynamic-transport model.
This paper proposes a unified framework for analyzing the Berry phase in axion-photon and axion-fermion interactions, suggesting that measuring this phase can serve as a novel method for detecting axions and probing the Standard Model's global structure and generalized symmetries.
This paper derives new constraints on the primordial curvature power spectrum within the previously underexplored small-scale regime of by utilizing recent theoretical advancements in black hole physics and existing limits on the initial mass fraction of light primordial black holes.