arXiv:hep-ph/0111006·v2·High Energy Physics — Phenomenology
Tensor susceptibility of the QCD vacuum from an effective quark-quark interaction
Hongting Yang (Nanjing Univ.) · Hongshi Zong (Nanjing Univ.) Jialun Ping (Nanjing Norm. Univ.) · Fan Wang (Nanjing Univ.)
Abstract
Treating the bilocal quark-quark interaction kernel as an input parameter, the self-energy functions can be determined from the ``rainbow'' Dyson-Schwinger equation, which is obtained in the global color symmetry model. The tensor susceptibility of QCD vacuum can be calculated directly from these self-energy functions. The values we obtained are much smaller than the estimations from QCD sum rules and from chiral constituent quark model.
Comments: 8 pages, Latex files