Ratio of $σ_L / σ_T$ for $p(e,e'K^+)Λ$ Extracted from Polarization Transfer

The ratio of longitudinal to transverse structure functions, $σ_L/σ_T$, has been extracted from recent beam-recoil transferred polarization data for the $p(\vec e,e'K^+)\vecΛ$ reaction. Results have been obtained for $W$=1.72, 1.84, and 1.98 GeV at an average $Q^2$ of 0.77, 0.69, and 0.61 GeV$^2$, respectively. Our results indicate a ratio that is systematically slightly smaller than previously published results using a Rosenbluth separation.

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