Spinor Ladder Models and the Asymptotic Behavior of Neutral Pion Photoproduction Amplitudes
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概要
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The asymptotic behaviors of nucleon-antinucleon scattering and π^0-photoproduction off a proton are calculated in perturbative ladder models whose sides are both spinor lines. Spins of the particles are treated correctly. Non-integer fixed branch points of the square-root type in complex angular momentum plane are found to dominate the amplitudes when s goes to minus infinity with t fixed. This disproves the previous conjecture that the right signature fixed pole at J=0 may dominate the π^0-photoproduction amplitude in the spinor ladder model, and seems to make the fixed pole unsatisfactory in explaining the experimental behavior s^2dσ/dt=constant.
- 理論物理学刊行会の論文
- 1971-09-25
著者
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SAKAI Norisuke
Department of Mathematics, Tokyo Woman's Christian University
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Sakai Norisuke
Department Of Mathematics Tokyo Woman's Christian University
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Sakai Norisuke
Department Of Physics University Of Tokyo
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