| Автор | D N Edwards |
| Автор | S G F Frank |
| Автор | J R Holt |
| Дата выпуска | 1959-06-01 |
| dc.description | The elastic scattering by hydrogen of negative pions with mean energy 98 MeV has been measured at 13 angles between 30° and 150° (lab.). The pion beam was monitored with a calibrated ionization chamber and its muon and electron contamination determined by means of a Cerenkov counter. This counter was also used in the scattering telescope to separate out the electrons produced by charge exchange γ-radiation. The results were corrected for Coulomb effects and a 3-parameter curve fitted to the nuclear parts. The curve is dσ/dΩ = (1 ± 0.027) [0.385 ± 0.008 + (0.276 ± 0.015) cos θ + (0.282 ± 0.031) cos<sup>2</sup> θ].Thus the forward scattering intensity is 0.942 ± 0.043 mbn sterad<sup>-1</sup>. In a separate transmission experiment the total nuclear cross section for scattering of 98 MeV negative pions by hydrogen was found to be 21.9 ± 0.7 mbn. These two figures yield a value for the real part of the forward scattering amplitude D_ = 0.195 ± 0.006 in units h/m<sub>π</sub>c. The corresponding value of f<sup>2</sup> from the dispersion relation is 0.073. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The Elastic Scattering of 98 MeV Negative Pions by Hydrogen |
| Тип | paper |
| DOI | 10.1088/0370-1328/73/6/304 |
| Print ISSN | 0370-1328 |
| Журнал | Proceedings of the Physical Society |
| Том | 73 |
| Первая страница | 856 |
| Последняя страница | 868 |
| Аффилиация | D N Edwards; Nuclear Physics Research Laboratory, University of Liverpool |
| Аффилиация | S G F Frank; Nuclear Physics Research Laboratory, University of Liverpool |
| Аффилиация | J R Holt; Nuclear Physics Research Laboratory, University of Liverpool |
| Выпуск | 6 |
