| Autor: |
D. Legacey, E. Shabazian, P. Brockman, T. S. Yoon, C. Zanfino, J. Gandsman, N. R. Stanton, J. A. Dankowych, J. D. Prentice, J. F. Martin, R. S. Longacre, P. M. Patel, K.W. Edwards, A. J. Pawlicki |
| Rok vydání: |
1979 |
| Předmět: |
|
| Zdroj: |
Physical Review Letters. 42:346-349 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.42.346 |
| Popis: |
We present the first results from an isobar-model phase-shift analysis of the $\ensuremath{\eta}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ system. The $D(1275)$ meson is established as a narrow ($\ensuremath{\Gamma}\ensuremath{\sim}10$ MeV) $I{J}^{P}={01}^{+}$ resonance. Beneath the $D$ is a broader ($\ensuremath{\Gamma}\ensuremath{\sim}70$ MeV) $I{J}^{P}={00}^{\ensuremath{-}}$ state which is a candidate for the radially excited $\ensuremath{\eta}$. The data are consistent with the existence of another 0${0}^{\ensuremath{-}}$ object of comparable width near 1.4 GeV. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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