Hard hadron spectroscopy

Abstract

I review lattice QCD calculations that compute the masses of the flavour singlet pseudoscalar mesons. I describe the progress in computing the mass spectrum of light 0++ mesons using lattice QCD. I also compare the results for basic quantities such as fpi and mrho, from various different formalisms of lattice QCD. I discuss the physical value of r0.

22 pages, 10 figures, plenary talk presented at the XXV International Symposium on Lattice Field Theory, 30 July - 4 August 2007, Regensburg, Germany. Changed the discussion of preliminary results for a0 and b1 masses from ETMC, because of an error in the analysis found while preparing arXiv:0906.4720

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Cited by in corpus (9)

• On the nature of the $\Lambda (1405)$ and $\Lambda (1670)$ from their $N_c$ behavior in chiral dynamics
• Scalar Meson Photoproduction
• Simulations of light scalar mesons on the lattice and related difficulties
• 2+1 flavour Domain Wall Fermion simulations by the RBC and UKQCD collaborations
• Excited hadrons on the lattice - State of the art and future challenges
• Excited hadrons in n_f=2 QCD
• Multi-hadron operators with all-to-all quark propagators
• Excited State Spectroscopy in the Lattice Gross-Neveu Model
• Searching for the Scalar Glueball