Separation of the Longitudinal and Transverse Cross Sections in the p(e, e′K+)Λ and p(e, e′K+)Σ0 Reactions
R. Mohring, Dominic Abbott, A. Ahmidouch, A.Ts. Amatuni, Pawel Ambrozewicz, T. Angelescu, C.S. Armstrong, J. Arrington, Ketevi Adikle Assamagan, S. Avery, Kay E. Bailey, Kenneth Beard, S. Beedoe, E.J. Beise, Heinrich Breuer, R. Carlini, Jaeseung Cha, N.S. Chant, E. Cisbani, George R. Collins · University Libraries (University of Maryland) · 2003
We report measurements of cross sections for the reaction p(e,e′K+)Y, for both the Λ and Σ0 hyperon states, at an invariant mass of W =1.84 GeV and four-momentum transfers 0.5 < Q2 < 2 (GeV/c)2. Data were taken for three values of virtual photon polarization ε, allowing the decom- position of the cross sections into longitudinal and transverse components. The Λ data is a revised analysis of prior work, whereas the Σ0 results have not been previously reported.