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Using the CLAS detector, we measure the K{sup +}{Lambda} and K{sup +}{Sigma}{sup 0} electroproduction response functions over the continuous kinematic range from threshold to W = 2.05 GeV and for Q{sup 2} between 0.5 and 1.5 (GeV/c){sup 2}, with nearly complete angular coverage in the center-of-momentum frame angles. The {sigma}{sub T} + {epsilon}{sigma}{sub L}, {sigma}{sub TT} terms are extracted and compared to recent theoretical calculations based upon a hadrodynamic effective-Lagrangian framework. From examining the W-dependence of the response functions for the K{sup +}{Lambda} final state, we find features in the ({sigma}{sub T} + {epsilon}{sigma}{sub L}) term in the W = 1.75 to 1.90GeV region, similar to features seen in recent photoproduction results. In general, the {sigma}{sub TT} and {sigma}{sub LT} response-functions for {Lambda} production are of the same order of magnitude as the ({sigma}{sub T} + {epsilon}{sigma}{sub L}) term, suggesting that both {sigma}{sub T} and {sigma}{sub L} contribute significantly. For the K{sup +} {Sigma}{sup 0} final state the W-dependence of the ({sigma}{sub T} + {epsilon}{sigma}{sub L}) and {sigma}{sub TT} terms have large, resonant-like features near W = 1.9GeV. Unlike in {Lambda} electroproduction, the {sigma}{sub LT} interference term for {Sigma}{sup 0} electroproduction is found to be consistent with zero across nearlymore » the entire kinematic range, while {sigma}{sub TT} is comparable in magnitude to the {sigma}{sub T} + {epsilon}{sigma}{sub L} differential cross-section. The models, while achieving some qualitative agreement with the data, fail to both describe the details of the angular distributions and reproduce the resonant-like behavior observed.« less

Measurement of the Unpolarized K&lt;sup&gt;+&lt;/sup&gt; Λ and K&lt;sup&gt;+&lt;/sup&gt; Σ&lt;sup&gt;0&lt;/sup&gt; Electroproduction Cross Sections and Interference Terms from the Proton with the CLAS Detector