| Autor: |
R. M. Delaney, C. A. Tilger, J. L. Broderick, C. P. Poirier |
| Rok vydání: |
1967 |
| Předmět: |
|
| Zdroj: |
Physical Review. 158:1331-1334 |
| ISSN: |
0031-899X |
| DOI: |
10.1103/physrev.158.1331 |
| Popis: |
The final state $p{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ produced in ${\ensuremath{\pi}}^{+}p$ scattering at 910 $\frac{\mathrm{MeV}}{c}$ was studied. A total of 82 events were identified as belonging to that final state yielding a cross section of 0.43\ifmmode\pm\else\textpm\fi{}0.06 mb. The data indicate that this final state contains the ${N}^{*}(1238)$. The ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{+}$ and ${\ensuremath{\pi}}^{\ensuremath{-}}p$ mass spectra are consistent with Lorentz-invariant phase space, but the ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ mass spectrum shows an enhancement at a mass of 400 MeV. The data are compared with the predictions of a simple isobar model. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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