| Autor: |
P. N. Kirk, P. Kalbaci, P. K. Caldwell, Abraham Lesnik, D. R. Rust, C. E. W. Ward, D. D. Yovanovitch, Carl W. Akerlof, K. C. Stanfield, D. I. Meyer |
| Rok vydání: |
1971 |
| Předmět: |
|
| Zdroj: |
Physical Review Letters. 27:219-222 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.27.219 |
| Popis: |
We have measured the reactions ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}p$ and ${\ensuremath{\pi}}^{+}p\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\Sigma}}^{+}$ at 5.0 GeV/c in the region $2.2l\ensuremath{-}tl3.5$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$. We find the minimum cross section of the dip at $\ensuremath{-}t=2.8$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$ in ${\ensuremath{\pi}}^{+}p$ elastic scattering to be 0.16 \ifmmode\pm\else\textpm\fi{} 0.05 ${\mathrm{\ensuremath{\mu}}\mathrm{b}/\mathrm{G}\mathrm{e}\mathrm{V}}^{2}$. The ${\ensuremath{\pi}}^{\ensuremath{-}}p$ differential cross section exhibits similar structure, while the ${\ensuremath{\pi}}^{+}p\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\Sigma}}^{+}$ channel shows a steady decline in cross section as $|t|$ increases. The polarization of the ${\ensuremath{\Sigma}}^{+}$ remains large and positive to at least $\ensuremath{-}t=2.8$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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