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Measurements ofNN → d&pgr; near threshold

 

作者: D. A. Hutcheon,  

 

期刊: AIP Conference Proceedings  (AIP Available online 1991)
卷期: Volume 221, issue 1  

页码: 111-128

 

ISSN:0094-243X

 

年代: 1991

 

DOI:10.1063/1.40375

 

出版商: AIP

 

数据来源: AIP

 

摘要:

New, precise measurements of the differential cross sections fornp → d&pgr;0and &pgr;+d → ppand of analyzing powers forpp → d&pgr;+have been made at energies within 10 MeV (c.m.) of threshold. They allow the pion s‐wave and p‐wave parts of the production strength to be distinguished unambiguously, yielding an s‐wave strength at threshold which is signigicantly smaller than the previously accepted value. There is no evidence for Charge Independence Breaking nor for &pgr;NN resonances near threshold.

 

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