ANGULAR-DISTRIBUTIONS FOR THE REACTION O-18(PI+, PI-)NE-18 AND PION DOUBLE-CHARGE-EXCHANGE FORM-FACTORS

被引：53

作者：

SETH, KK ^{[1
]}

IVERSEN, S ^{[1
]}

NANN, H ^{[1
]}

KALETKA, M ^{[1
]}

HIRD, J ^{[1
]}

THIESSEN, HA ^{[1
]}

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.43.1574

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first angular distributions for pion double charge exchange to discrete nuclear states are reported. The analog and nonanalog states are found to be equally strongly populated. The direct, surface-dominated nature of the reaction is clearly demonstrated by the angular distribution shapes. It is shown that in order to produce detailed agreement with the data, the present ideas for the pion charge-exchange form factors may need to be drastically revised. © 1979 The American Physical Society.

引用

页码：1574 / 1577

页数：4

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