# Separated Structure Functions for Exclusive $K^+\Lambda$ and $K^+\Sigma^0$ Electroproduction at 5.5 GeV with CLAS

Abstract : We report measurements of the exclusive electroproduction of $K^+\Lambda$ and $K^+\Sigma^0$ final states from an unpolarized proton target using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions $\sigma_U$, $\sigma_{LT}$, $\sigma_{TT}$, and $\sigma_{LT'}$ were extracted from the $\Phi$-dependent differential cross sections acquired with a longitudinally polarized 5.499 GeV electron beam. The data span a broad range of momentum transfers $Q^2$ from 1.4 to 3.9 GeV$^2$, invariant energy $W$ from threshold to 2.6 GeV, and nearly the full center-of-mass angular range of the kaon. The separated structure functions provide an unprecedented data sample, which in conjunction with other meson photo- and electroproduction data, will help to constrain the higher-level analyses being performed to search for missing baryon resonances.
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http://hal.in2p3.fr/in2p3-00762344
Contributor : Emmanuelle Vernay <>
Submitted on : Friday, December 7, 2012 - 9:27:38 AM
Last modification on : Tuesday, January 5, 2021 - 1:38:05 PM

### Citation

D.S. Carman, K. Park, B.A. Raue, K.P. Adhikari, D. Adikaram, et al.. Separated Structure Functions for Exclusive $K^+\Lambda$ and $K^+\Sigma^0$ Electroproduction at 5.5 GeV with CLAS. Physical Review C, American Physical Society, 2013, 87, pp.025204. ⟨10.1103/PhysRevC.87.025204⟩. ⟨in2p3-00762344⟩

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