| Autor: |
Brasse, F. W., Flauger, W., Gayler, J., Gerhardt, V., Gößling, C., Haidan, R., Korbel, V., Wriedt, H. |
| Zdroj: |
Zeitschrift für Physik C Particles and Fields; March 1984, Vol. 22 Issue: 1 p33-38, 6p |
| Abstrakt: |
We report on results of ?-electroproduction in the resonance region at momentum transfers ofQ2=2 GeV2 and 3 GeV2. The differential cross sections obtained in the region of the second nucleon resonance strongly support the dominance of theS11(1535) in this channel. The total transverse virtual photoproduction cross section of theS11(1535) shows a flatQ2-dependence ~e-0.39·Q2. Comparison with the total resonant ?vp cross section in the second resonance region aroundW=1.5 GeV shows that theD13(1520) production decreases much faster (~e-1.6·Q2). The data are not compatible with the simple harmonic oscillator quark model with spin and orbit excitation of a quark only. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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