The Regge Pole Hypothesis and an Extended Particle Model
The Regge Pole Hypothesis and an Extended Particle Model
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雷格极点假说和扩展粒子模型
DOI：
10.1143/ptp.38.715
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发表时间：
1967
期刊：
影响因子：
--
通讯作者：
S. Tanaka
中科院分区：
文献类型：
--
作者：
M. Bandō;Takeshi Inoue;Y. Takada;S. Tanaka
汤川双局域场作为扩展粒子的一个简单模型被研究，并被量子化以表示Regge极点行为。用统一的方法解释了高能弹性散射的两个特征方面，即正向附近的绕射花样和大角度的复合弹性散射，即前者是由这个扩展的粒子与类空间的四动量交换所解释的，后者是由这个具有类时四动量的粒子在散射的中间态出现而解释的。根据汤川双局域场上Fierz展开假设的有效性，强调了所考虑的粒子是以类空间的四动量传播的，还是以类时间的四动量传播的。
Yukawa's bi-local field is investigated as a simple model for an extended particle and is quantized so as to represent the Regge pole behaviour. Two characteristic aspects of elastic scattering at high energies, the diffraction pattern near the forward direction and the compound elastic type of scattering at large angle are explained in a unified way, i.e. the former is explained by the exchange of this extended particle with a space-like four-momentum and the latter by the occurrence of this particle with a time-like four-momentum in the intermediate state of scattering. The difference is emphasized which is due to whether the particle under consideration propagates with a space-like or a time-like four-momentum, in reference to the validity of Fierz's expansion postulate on Yukawa's bi-local field.