1. Department of Physics, Nanjing University, Nanjing 210093, China;2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China;3. Department of Physics, Sichuan University,Chengdu 610064, China
Abstract:
A new approach for calculating vacuum susceptibilities from aneffective quark-quark interaction model is derived. As a specialcase, the vector vacuum susceptibility is calculated. A comparisonwith the results of the previous approaches is given.