| Autor: |
S. H. Rokni, Christopher Morris, Eli Piasetzky, D. H. Wright, J. R. Comfort, R. L. Burman, Helmut W. Baer, M. J. Leitch, Z. Weinfeld |
| Rok vydání: |
1988 |
| Předmět: |
|
| Zdroj: |
Physical review. C, Nuclear physics. 37(2) |
| ISSN: |
0556-2813 |
| Popis: |
Differential cross sections for the double-isobaric-analog-state transition in the /sup 42,44/Ca(..pi../sup +/,..pi../sup -/) reactions were measured at an incident energy of 35 MeV and 40 degrees. The /sup 42/Ca cross section (2.0 +- 0.5 ..mu..b/sr) is nearly as large as those of the lighter T = 1 nuclei and only slightly smaller than that previously measured for /sup 48/Ca (2.4 +- 0.7 ..mu..b/sr). The cross section for /sup 44/Ca (1.1 +- 0.3 ..mu..b/sr) is half of this amount. These results are surprising when compared with simple expectations and point to the importance of the nonanalog route contribution at low energies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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