MEASUREMENT OF NP-]DPI0 CROSS-SECTIONS VERY NEAR THRESHOLD

被引：47

作者：

HUTCHEON, DA

KORKMAZ, E

MOSS, GA

ABEGG, R

DAVISON, NE

EDWARDS, GWR

GREENIAUS, LG

MACK, D

MILLER, CA

OLSEN, WC

VANHEERDEN, IJ

YE, YL

机构：

[1] UNIV ALBERTA,NUCL RES CTR,EDMONTON T6G 2N5,ALBERTA,CANADA

[2] UNIV WESTERN CAPE,DEPT PHYS,BELLVILLE 7535,SOUTH AFRICA

[3] UNIV MANITOBA,DEPT PHYS,WINNIPEG R3T 2N2,MANITOBA,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.64.176

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured npde0 cross sections at eleven beam energies within 16 MeV of threshold. Total cross sections are only 0.67+0.10 of the value which has been generally accepted for s-wave pion production strength near threshold. The differential cross sections are anisotropic at only 1 MeV (c.m.) above threshold. Our results are compared to e+dpp data and to predictions of two models. © 1990 The American Physical Society.

引用

页码：176 / 179

页数：4

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