N-N SCATTERING LENGTH FROM THE PHOTON SPECTRA OF THE REACTIONS PI-D-]GAMMA-NN AND PI-P-]GAMMA-N

被引：77

作者：

GABIOUD, B

ALDER, JC

JOSEPH, C

LOUDE, JF

MOREL, N

PERRENOUD, A

PERROUD, JP

TRAN, MT

WINKELMANN, E

DAHME, W

PANKE, H

RENKER, D

ZUPANCIC, C

STRASSNER, G

TRUOL, P

机构：

[1] UNIV ZURICH,INST PHYS,CH-8001 ZURICH,SWITZERLAND

[2] UNIV MUNICH,SEKT PHYS,D-8046 GARCHING,FED REP GER

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.42.1508

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A high-statistics photon spectrum from the reaction π-d→γnn, measured with a 0.72-meV-resolution pair spectrometer is compared with different theoretical spectra folded with the measured photon line from the reaction π-p→γn. A value of ann=-18.5±0.5 fm (theoretical error included) is deduced assuming a fixed value of rnn=2.8±0.1 fm. The problem of extracting rnn using the present theories is indicated. © 1979 The American Physical Society.

引用

页码：1508 / 1511

页数：4

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