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P-Odd Effects in pi n-Scattering at Low Energies and Determination of the Isotopical Structure of the Weak Nonleptonic Interaction

机译：低能量π散射的p-奇效应和弱非轻子相互作用的同位素结构的确定

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P-odd effects in the pi N-scattering on a target polarized along and again a pion beam have been considered. The P-odd correlations are intensified by interference of weak and strong interactions, whose amplitude is great in the energy range of the order of 100 to 300 MeV. When measuring cross-section differences of the pi N-scattering at meson factories, it is possible to hope that the Lobashow integral method may be used in this range. The P-odd amplitudes have been calculated in the approximation of low-energy pions from the P-odd pi NN vertex. High-energy meson effects are taken account of in the model of a rho-meson exchange. A kinematic analysis shows that the P-odd effects in a backward charge exchange reaction are sensitive to the presence of neutral currents. Investigation of the P-odd effects in a forward (elastica and with charge exchange) pi N-scattering makes it possible to establish the isotopic structure of the nonlepton weak interaction and in particular to check the assumption of an intensified rho-meson exchange which has been offered by. Danilov to explain the high value of circular polarization of gamma -quanta in the np implies d gamma reaction. (Atomindex citation 08:333839)

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Gershtein, S. S.; Folomeshkin, V. N.; Khlopov, M. Y.;
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年度 1974
页码 1-24
总页数 24
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Pion-nucleon interactions ; Rho-765 resonances ; Weak interactions ; Charge-exchange interactions ; Correlations ; Cross sections ; Elastic scattering ; Energy dependence ; Mev range ; Neutral currents ; Ope model ; P invariance ; Polarized targets ; Scattering amplitudes ; Structural models;

机译：π-核子相互作用; Rho-765共振;弱相互作用;电荷交换相互作用;相关性;截面;弹性散射;能量依赖性; mev范围;中性电流; Ope模型; p不变性;极化目标;散射振幅;结构模型;

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P-Odd Effects in pi n-Scattering at Low Energies and Determination of the Isotopical Structure of the Weak Nonleptonic Interaction

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