Form factors from lattice QCD

Abstract

Precision computation of hadronic physics with lattice QCD is becoming feasible. The last decade has seen percent-level calculations of many simple properties of mesons, and the last few years have seen calculations of baryon masses, including the nucleon mass, accurate to a few percent. As computational power increases and algorithms advance, the precise calculation of a variety of more demanding hadronic properties will become realistic. With this in mind, I discuss the current lattice QCD calculations of generalized parton distributions with an emphasis on the prospects for well-controlled calculations for these observables as well. I will do this by way of several examples: the pion and nucleon form factors and moments of the nucleon parton and generalized-parton distributions.

proceedings of plenary talk at QNP 2012

References in corpus (17)

• Ab-initio Determination of Light Hadron Masses
• Uncertainties on alpha_S in global PDF analyses and implications for predicted hadronic cross sections
• 2+1 Flavor Lattice QCD toward the Physical Point
• The 3-, 4-, and 5-flavor NNLO Parton from Deep-Inelastic-Scattering Data and at Hadron Colliders
• Charged pion form factor between Q^2=0.60 and 2.45 GeV^2. II. Determination of, and results for, the pion form factor
• Dynamical NNLO parton distributions
• The low-lying baryon spectrum with two dynamical twisted mass fermions
• Nucleon Electromagnetic Form Factors from Lattice QCD using 2+1 Flavor Domain Wall Fermions on Fine Lattices and Chiral Perturbation Theory
• Electromagnetic form factor of the pion from twisted-mass lattice QCD at Nf=2
• The pion's electromagnetic form factor at small momentum transfer in full lattice QCD
• Moments of nucleon generalized parton distributions from lattice QCD
• Workshop on Precision Measurements of alphas
• Dirac and Pauli form factors from lattice QCD
• Precision Study of Excited State Effects in Nucleon Matrix Elements
• Pion vector and scalar form factors with dynamical overlap quarks
• Calculation of the pion electromagnetic form factor from lattice QCD
• First moments of the nucleon generalized parton distributions from lattice QCD

Cited by in corpus (10)

• Angular analysis of the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity
• Global analysis of $b\to s\ell \ell$ anomalies
• On the impact of power corrections in the prediction of B->K*mu+mu- observables
• Hint of Lepton Flavour Non-Universality in $B$ Meson Decays
• Lepton Flavor Non-Universality in B-meson Decays from a U(2) Flavor Model
• Diagnosing lepton-nonuniversality in $b\to s\ell \ell$
• Explaining the Lepton Non-universality at the LHCb and CMS from a Unified Framework
• Large hadronic power corrections or new physics in the rare decay B-->K* mu+ mu- ?
• Time dependence in $B\to V\ell \ell$ decays
• Exploiting the Symmetries of P and S wave for B --> K^* mu^+ mu^-