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Possibility of determinig the parity of the pentaquark from photoproduction near threshold
We discuss the possibility of determining the parity of the baryon
from photoproduction process near threshold. We utilize
the conservation laws of parity and angular momentum for the analysis of
angular distributions and spin observables near threshold. Since the discussion
is in essence a partial wave analysis of the production mechanism the result
should be less dependent on the model parameters. Our analysis shows that the
angular distribution and photon polarization asymmetry for the process of
neutron target are sensitive to the parity of the , but not for the
case of proton target. In the case of proton target, the polarization
asymmetries of target and recoiled are preferred for parity
determination.Comment: 23 pages, 13 figures, extended versio