Abstract
The momentum dependence of the matrix elements of quark bilinear scalar and pseudoscalar densities is determined from chiral perturbation theory. We explain why the original vacuum-insertion calculation of the penguin-induced K/sup 0/-2..pi.. amplitude by Shifman, Vainshtein, and Zakharov (SVZ) gives the correct chiral result even though only the momentum dependence in is taken into consideration in the SVZ work.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
