Measurement of π

O. Bartalini, V. Bellini, J.P. Bocquet, M. Capogni, L. Casano, M. Castoldi, P. Calvat, A. D'Angelo, R. Di Salvo, A. Fantini, C. Gaulard, G. Gervino, F. Ghio, B. Girolami, A. Giusa, V. Kouznetsov, A. Lapik, P. Levi Sandri, A. Lleres, D. MoriccianiA.N. Mushkarenkov, V. Nedorezov, L. Nicoletti, C. Perrin, D. Rebreyend, F. Renard, N. Rudnev, T. Russew, G. Russo, C. Schaerf, M.-L. Sperduto, M.-C. Sutera, A. Turinge

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Abstract

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.
Original languageEnglish
Pages (from-to)399 - 419
Number of pages21
JournalEuropean Physical Journal A
Volume26
Issue number3
DOIs
Publication statusPublished - Dec 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Bartalini, O., Bellini, V., Bocquet, J. P., Capogni, M., Casano, L., Castoldi, M., ... Turinge, A. (2005). Measurement of π. European Physical Journal A, 26(3), 399 - 419. https://doi.org/10.1140/epja/i2005-10191-2