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Pion Absorption inHe3,4andĪNResonances
- Source :
- Physical Review Letters. 46:1562-1565
- Publication Year :
- 1981
- Publisher :
- American Physical Society (APS), 1981.
-
Abstract
- The cross sections of /sup 3,4/He(..pi../sup -/,n)/sup 2,3/H have been measured at 285, 428, 525, and 575 MeV extending the information on the energy dependence beyond the region previously known (50 --300 MeV). The cross sections beyond the region of the ..delta.. resonance are found to decrease less rapidly than that of the elementary ..pi..d..-->..pp process. This energy dependence suggests that pion absorption in a nucleus is associated with ..pi..+N (off-shell) scattering which includes I = 1/2 ..pi..N resonances that are strongly suppressed in ..pi..d..-->..pp.
Details
- ISSN :
- 00319007
- Volume :
- 46
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi...........581343284c4547f8410f8e71341cf078
- Full Text :
- https://doi.org/10.1103/physrevlett.46.1562