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The European Physical Journal A

, Volume 31, Issue 4, pp 630–637 | Cite as

Mind the gap

  • M. S. Bhagwat
  • A. Krassnigg
  • P. Maris
  • C. D. RobertsEmail author
QNP 2006

Abstract.

In this summary of the application of Dyson-Schwinger equations to the theory and phenomenology of hadrons, some deductions following from a nonperturbative, symmetry-preserving truncation are highlighted, notable amongst which are results for pseudoscalar mesons. We also describe inferences from the gap equation relating to the radius of convergence of a chiral expansion, applications to heavy-light and heavy-heavy mesons, and quantitative estimates of the contribution of quark orbital angular momentum in pseudoscalar mesons; and recapitulate upon studies of nucleon electromagnetic form factors.

PACS.

24.85.+p Quarks, gluons, and QCD in nuclei and nuclear processes 12.38.Lg Other nonperturbative calculations 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  • M. S. Bhagwat
    • 1
  • A. Krassnigg
    • 2
  • P. Maris
    • 3
  • C. D. Roberts
    • 1
    Email author
  1. 1.Physics DivisionArgonne National LaboratoryArgonneUSA
  2. 2.Fachbereich Theoretische PhysikUniversität GrazGrazAustria
  3. 3.Department of Physics and AstronomyUniversity of PittsburghUSA

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