Prog. Theor. Phys. Vol. 44 No. 6 (1970) pp. 1684-1697
Gauge Condition in Helicity Formalism
Physics Department, College of General Education, Tohoku University, Sendai
*Physics Department, Tohoku University, Sendai
**Institute for Atomic Research and Department of Physics, Iowa State University, Ames, Iowa, U.S.A.
(Received July 20, 1970)
Through the example of boson Compton scattering, the gauge invariance requirement is formulated in the helicity formalism. The formalism assumes that the longitudinal helicity amplitudes vanish as powers of photon invariant “mass”, and the virtual Compton scattering can be treated in a unified way with the real one. The formalism is used to discuss the problem of Born terms, Regge pole theory and other related topics. Since the formalism exploit only the knowledge of crossing matrix, it should be applicable to more complicated reactions.
DOI : 10.1143/PTP.44.1684
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Citing Article(s) :
Progress of Theoretical Physics Vol. 51 No. 5 (1974) pp. 1496-1502
J = 0 Singularity in Forward Virtual Compton Amplitude
Progress of Theoretical Physics Vol. 52 No. 4 (1974) pp. 1288-1301
Gauge Invariant Pion Regge Pole
Koichi Takahashi and Takeshi Ebata