| Autor: |
E. D. Berners, S. Messelt, L. C. Northcliffe, David J. Knecht |
| Rok vydání: |
1959 |
| Předmět: |
|
| Zdroj: |
Physical Review. 114:550-559 |
| ISSN: |
0031-899X |
| DOI: |
10.1103/physrev.114.550 |
| Popis: |
Differential cross sections for the scattering of protons by protons have been measured at energies of 1.397, 1.855, and 2.425 Mev over an angular range from 12\ifmmode^\circ\else\textdegree\fi{} to 90\ifmmode^\circ\else\textdegree\fi{} in the center-of-mass system. Total uncertainties vary from about \ifmmode\pm\else\textpm\fi{}0.1% at large angles to \ifmmode\pm\else\textpm\fi{}0.3% at the smallest angles. A thorough investigation of sources of error has yielded cross-section values in disagreement with previously published values. A simple phase-shift analysis has been made. Without the inclusion of vacuum polarization contributions, a satisfactory fit is not obtained with only $S$-wave and effective nuclear $P$-wave phase shifts. With their inclusion, the data are fitted well by pure $S$-wave nuclear scattering. An upper limit on the magnitude of the effective nuclear $P$-wave phase shift is estimated at about 0.02\ifmmode^\circ\else\textdegree\fi{} at these energies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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