Abstract
Low's theorem is deduced from the Born diagrams for pi /sup + / production by imposing electromagnetic current conservation (ECC), but the anomalous electric quadrupole moment contribution could be very important even at threshold. The derivation of the Kroll-Ruderman and Fubini-Furlan-Rossetti theorems is made consistent with ECC and Low's theorem in contrast to previous works where these are violated. A discussion of information obtainable from experiment shows that soft pion results cannot be used directly but an extrapolation from q/sup 2/=0 to m pi /sup 2/ is given which is compatible with ECC and Low's theorem.
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.
