Separation of the Longitudinal and Transverse Cross Sections in the p(e,e{prime}K{sup +}){Lambda} and p(e,e{prime}K{sup +}){Sigma}{sup 0} Reactions
2003
We report measurements of cross sections for the reaction {sup 1}H(e,e{prime} K{sup +})Y, for both the {Lambda} and {Sigma}{sup 0} hyperon states, at an invariant mass of W = 1.84 GeV and four-momentum transfers 0.5 < Q{sup 2} < 2 (GeV/c){sup 2}. Data were taken for three values of virtual photon polarization {epsilon}, allowing the decomposition of the cross sections into longitudinal and transverse components. The {Lambda} data are a revised analysis of prior work, whereas the {Sigma}{sup 0} results have not been previously reported.
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