Results 41 to 50 of about 943,876 (253)
Data-driven evaluations of Euclidean windows to scrutinize hadronic vacuum polarization
Physics Letters B, 2022 In this paper, we discuss how windows in Euclidean time can be used to isolate the origin of potential conflicts between evaluations of the hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon in lattice QCD and ...
G. Colangelo +6 more
doaj +1 more source
Computing the magnetic field response of the proton [PDF]
EPJ Web of Conferences, 2020 Background field methods offer an approach through which fundamental non-perturbative hadronic properties can be studied. Lattice QCD is the only ab initio method with which Quantum Chromodynamics can be studied at low energies; it involves numerically ...
Bignell Ryan +2 more
doaj +1 more source
Multi-Quarks and Two-Baryon Interaction in Lattice QCD [PDF]
, 2006 We study multi-quark (3Q,4Q,5Q) systems in lattice QCD. We perform the detailed studies of multi-quark potentials in lattice QCD to clarify the inter-quark interaction in multi-quark systems. We find that all the multi-quark potentials are well described
Doi, Takumi +3 more
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PHENOMENOLOGY FROM LATTICE QCD [PDF]
Lepton-Photon 01, 2002 I review two subject in which lattice simulations are making, or can make in the future, a significant contribution to particle physics phenomenology. The first subject is the evaluation of quantities which enter into the determination of the vertex A of the unitarity triangle from experimental measurements of decay rates and mixing amplitudes.
openaire +4 more sources
Electromagnetic and spin polarisabilities in lattice QCD [PDF]
, 2006 We discuss the extraction of the electromagnetic and spin polarisabilities of nucleons from lattice QCD. We show that the external field method can be used to measure all the electromagnetic and spin polarisabilities including those of charged particles.
A. Walker-Loud +4 more
core +3 more sources
Parton distributions and lattice QCD calculations: a community white paper [PDF]
, 2017 In the framework of quantum chromodynamics (QCD), parton distribution functions (PDFs) quantify how the momentum and spin of a hadron are divided among its quark and gluon constituents. Two main approaches exist to determine PDFs.
Huey-Wen Lin +31 more
semanticscholar +1 more source
Effective charge from lattice QCD [PDF]
Chinese Physics C, High Energy Physics & Nuclear Physics, 2019 Using lattice configurations for quantum chromodynamics (QCD) generated with three domain-wall fermions at a physical pion mass, we obtain a parameter-free prediction of QCD’s renormalisation-group-invariant process-independent effective charge, .
Zhu-Fang Cui +9 more
semanticscholar +1 more source
A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results [PDF]
Advances in High Energy Physics, 2018 Within the theory of Quantum Chromodynamics (QCD), the rich structure of hadrons can be quantitatively characterized, among others, using a basis of universal nonperturbative functions: parton distribution functions (PDFs), generalized parton ...
K. Cichy, M. Constantinou
semanticscholar +1 more source
Hadronic-vacuum-polarization contribution to the muon’s anomalous magnetic moment from four-flavor lattice QCD [PDF]
Physical Review D, 2019 We calculate the contribution to the muon anomalous magnetic moment hadronic vacuum polarization from the connected diagrams of up and down quarks, omitting electromagnetism.
C. Davies +19 more
semanticscholar +1 more source
Localization in lattice QCD [PDF]
Physical Review D, 2003 In this paper, we examine the phase diagram of quenched QCD with two flavors of Wilson fermions, proposing the following microscopic picture. The super-critical regions inside and outside the Aoki phase are characterized by the existence of a density of near-zero modes of the (hermitian) Wilson-Dirac operator, and thus by a non-vanishing pion ...
Golterman, Maarten, Shamir, Yigal
openaire +2 more sources