Measurement of pi(0) photoproduction on the proton from 550 to 1500 MeV at GRAAL
- BARTALINI, ORIETTA
- Bellini, V
- Bocquet, J
- Capogni, M
- Casano, L
- Castoldi, M
- Calvat, P
- D'ANGELO, ANNALISA
- Di Salvo, R
- FANTINI, ALESSIA
- Gaulard, C
- Gervino, G
- Ghio, F
- Girolami, B
- Giusa, A
- Kouznetsov, V
- LAPIK, ALEXANDER
- Sandri, P
- Lleres, A
- Moricciani, D
- Mushkarenkov, A
- Nedorezov, V
- Nicoletti, L
- Perrin, C
- Rebreyend, D
- Renard, F
- Rudnev, N
- Russew, T
- Russo, G
- SCHAERF, CARLO
- Sperduto, M
- Sutera, M
- Turinge, A.
Publication date
January 2005
DOI Publisher
Springer Science and Business Media LLCAbstract
Neutral pion photoproduction has been measured from 550 to 1500 MeV with the GRAAL facility, located at the ESRF in Grenoble. Differential cross-section and beam asymmetry have been measured over a wide angular range. These high-precision data improve significantly the database for the beam asymmetry in the second and third resonance regions covering for the first time the energy domain 1100-1500 MeV. New partial-wave analyses including these data are presented for which the beam asymmetry brings crucial constraints
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