Pion and Vacuum Properties in the Nonlocal NJL Model

  • Michał Praszałowicz
  • Andrzej Rostworowski
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 616)


We formulate the nonlocal NJL model with a momentum dependent constituent quark mass and calculate pion light cone wave functions of twist 2 and 3. The leading twist wave function is not asymptotic and agrees well with the new CLEO data. Normalization conditions for the twist 3 wave functions are used to calculate the quark condensate. A prescription to calculate the gluon condensate is proposed. The numerical value of the gluon condensate nicely agrees with the phenomenological value, whereas the quark condensate is larger than the phenomenological value of -(250 MeV)3. The relation between the k 2 T moments and mixed condensates are used to estimate the mixed quark-gluon condensate of dimension 5.


Wave Function Quark Condensate Gluon Condensate Light Cone Wave Function Pion Wave Function 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Michał Praszałowicz
    • 1
  • Andrzej Rostworowski
    • 1
  1. 1.M. Smoluchowski Institute of PhysicsJagellonian UniversityKrakówPoland

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