Abstract
We consider a mechanism for generating a nonsense wrong-signature fixed pole in the scattering amplitude based on a certain class of Feynman diagrams. We show that the presence of a fixed pole in the Reggepole residue is expected when we include an effect of the third double-spectral function in an appropriate way, and discuss its phenomenological implications in connection with dip-bump structures in differential cross sections. In particular, a certain channel-independent feature of a fixed-pole effect is pointed out and a comparison with the data is made.
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.
