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Electroproduction of (1405)
The electroproduction of (1405) was studied by analyzing the
E1F data set collected in Hall B at Jefferson Lab. The analysis utilized the
decay channel of the (1405) and of the
. Simulations of background, (1405) and (1520)
production according to PDG values were performed by using standard CLAS
analysis tools adapted for the E1F run. Fits of the acceptance-corrected
simulations were made to the acceptance-corrected data to determine
contributions from signal and background processes. The line shape of
(1405) varies with the four momentum transfer, , and does not match the
line shape based on PDG resonance parameters. It corresponds approximately to
predictions of a recent two-pole meson-baryon picture of this state.Comment: 4 pages, 6 figures, Contribution to the Proceedings of "NSTAR2011 -
The 8th International Workshop on the Physics of Excited Nucleons," Thomas
Jefferson National Accelerator Facility, Newport News, Virginia USA, 17-20
May 201
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