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DISPERSION RELATIONS FOR PRODUCTION AMPLITUDES

Journal Article · · Phys. Rev. Letters
>The Logunov dispersion relation for production amplitudes is discussed. It is shown that this relation is invalid, i.e., that the production amplitude has complex singularities when regarded as a function of the Logunov variables. The reaction pi + N yields pi + pi + N is analyzed by perturbation theory, and it is found that 4 of the 5 independent variables of the reaction are ignored in the Logunov calculations. The singularities in the Logunov production amplitudes are demonstrated in Feynman diagrams. (T.F.H.)
Research Organization:
Princeton Univ., N.J.
NSA Number:
NSA-15-015000
OSTI ID:
4043097
Journal Information:
Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 6: No. 6
Country of Publication:
Country unknown/Code not available
Language:
English

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