Data di Pubblicazione:
2007
Abstract:
The helicity dependence of the total cross-section and the invariant-mass distributions in the
(p±) and (+−) final states for the
p → p+− reaction have been measured for the first time at
incident photon energies from 400 to 800MeV. The measurement was performed with the large-acceptance
detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. Although
this channel is found to be predominantly excited by the intermediate production of a state, both
the measured unpolarized and the helicity-dependent observables are generally not well described by the
existing theoretical models.
(p±) and (+−) final states for the
p → p+− reaction have been measured for the first time at
incident photon energies from 400 to 800MeV. The measurement was performed with the large-acceptance
detector DAPHNE at the tagged photon beam facility of the MAMI accelerator in Mainz. Although
this channel is found to be predominantly excited by the intermediate production of a state, both
the measured unpolarized and the helicity-dependent observables are generally not well described by the
existing theoretical models.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
MESON PRODUCTION; BARYON RESONANCES; PHOTOPRODUCTION REACTIONS
Elenco autori:
J., Ahrens; Altieri, Saverio; J. R. M., Annand; H. J., Arends; R., Beck; M. A., Blackston; C., Bradtke; A., Braghieri; N., D’Hose; H., Dutz; A., Fix; S., Goertz1; P., Grabmayr; S., Hasegawa; E., Heid; H., Holvoet; N., Horikawa; T., Iwata; O., Jahn; P., Jennewein; F., Klein; R., Kondratiev; M., Lang; B., Lannoy; V., Lisin; M., Martinez Fabregate; J. C., Mcgeorge; W., Meyer; Panzeri, Alessandra; P., Pedroni; Pinelli, Tazio; I., Preobrajenski; G., Reicherz; Rohlof, C. h.; G., Rosner; M., Rost; T., Rostomyan; D., Ryckbosch; M., Schumacher; B., Seitz; G., Tamas; A., Thomas; R., Van de Vyver; H. R., Weller; F., Zapadtka
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