Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-10-26
Commun.Theor.Phys. 44 (2005) 487-498
Physics
High Energy Physics
High Energy Physics - Theory
Scientific paper
The interaction kernel in the Bethe-Salpeter equation for quark-antiquark bound states is derived newly from QCD in the case where the quark and the antiquark are of different flavors. The technique of the derivation is the usage of the irreducible decomposition of the Green's functions involved in the Bethe-Salpeter equation satisfied by the quark-antiquark four-point Green's function. The interaction kernel derived is given a closed and explicit expression which shows a specific structure of the kernel since the kernel is represented in terms of the quark, antiquark and gluon propagators and some kinds of quark, antiquark and/or gluon three, four, five and six-point vertices. Therefore, the expression of the kernel is not only convenient for perturbative calculations, but also suitable for nonperturbative investigations.
No associations
LandOfFree
New closed expression of the interaction kernel in the Bethe-Salpeter equation for quark-antiquark bound states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with New closed expression of the interaction kernel in the Bethe-Salpeter equation for quark-antiquark bound states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New closed expression of the interaction kernel in the Bethe-Salpeter equation for quark-antiquark bound states will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-555320