| Autor: |
M. Blecher, R. L. Burman, D. H. Wright, Barry Ritchie, Z. Weinfeld, C. S. Whisnant, C. S. Mishra, D. Rothenberger, J. A. Escalante |
| Rok vydání: |
1988 |
| Předmět: |
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| Zdroj: |
Physical Review C. 37:1155-1160 |
| ISSN: |
0556-2813 |
| DOI: |
10.1103/physrevc.37.1155 |
| Popis: |
Cross sections for the elastic scattering of positive and negative pions from calcium at 19.5 and 30 MeV were measured at scattering angles between 18\ifmmode^\circ\else\textdegree\fi{} and 110\ifmmode^\circ\else\textdegree\fi{}. They are compared to the angular distributions predicted by three optical models. Both 19.5 and 30 MeV data agree best with the predictions of a potential whose strengths are taken from a phenomenological potential designed to reproduce anomalously small level shifts and widths in pionic atoms. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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