ASYMPTOTIC TOTAL CROSS-SECTIONS AND POSITIVITY IN MESON-MESON SCATTERING

被引：4

作者：

CAPRINI, I

SARARU, A

SARARU, M

VERZEGNASSI, C

机构：

[1] UNIV TRIESTE, IST FIS TEORICA, I-34127 TRIESTE, ITALY

[2] IST NAZL FIS NUCL, TRIESTE, ITALY

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1979年 / 53卷 / 03期

关键词：

D O I：

10.1007/BF02776367

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Starting from the recent experimental analysis of elastic ππ and Kπ scatterings, we derive for both processes the (unique) analytic function which best approximates the data, satisfies the requirement imposed by unitarity and generates a constant asymptotic total cross-section. Assuming that the asymptotic regime sets up particularly quickly at imaginary ν≃(s-u)/4, we predict the values of these cross-sections. Our prediction is σ ∞ ππ ≃σ ∞ κπ ≃(9÷12) mb. © 1979 Società Italiana di Fisica.

引用

页码：269 / 280

页数：12

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