Autor: |
B. Zeidman, L. W. Swenson, D. F. Geesaman, H. A. Thiessen, J. F. Amann, G. R. Burleson, C. L. Morris, R. E. Segel, R. L. Boudrie, M. J. Devereux, C. Olmer, Rudolf Siemssen |
Rok vydání: |
1978 |
Předmět: |
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Zdroj: |
Physical Review Letters. 40:1539-1542 |
ISSN: |
0031-9007 |
DOI: |
10.1103/physrevlett.40.1539 |
Popis: |
The elastic scattering of 162-MeV ${\ensuremath{\pi}}^{+}$ and ${\ensuremath{\pi}}^{\ensuremath{-}}$ by $^{9}\mathrm{Be}$, Si, $^{58}\mathrm{Ni}$, and $^{208}\mathrm{Pb}$ have been measured. All angular distributions, except for $^{9}\mathrm{Be}$, exhibit strong diffraction patterns. Optical-model calculations with matter distributions deduced from electron scattering qualitatively reproduce the data, but better agreement for all but $^{9}\mathrm{Be}$ can be obtained with suitable modifications. No substantial differences in neutron- and proton-matter radii are indicated. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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