Ratio of ${\sigma }_L/{\sigma }_T$ for $p(e,e^{\prime }{K}^{+})\Lambda$ Extracted from Polarization Transfer

Abstract

The ratio of longitudinal to transverse structure functions, ${\sigma }_L/{\sigma }_T$, has been extracted from recent beam-recoil transferred polarization data for the $p(\vec{e},e^{\prime }{K}^{+})\vec{\Lambda }$ 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.

14 pages, 4 figures

References in corpus (5)

• Two-photon exchange and elastic electron-proton scattering
• How well do we know the electromagnetic form factors of the proton?
• Evidence for two-photon exchange contributions in electron-proton and positron-proton elastic scattering
• First Measurement of Transferred Polarization in the Exclusive e p --> e' K+ Lambda Reaction
• Separation of the Longitudinal and Transverse Cross Sections in the p(ee'K)Lambda and p(ee'K)Sigma Reactions

Cited by in corpus (8)

• Separated Structure Functions for the Exclusive Electroproduction of $K^{+}\Lambda$ and $K^{+}{\Sigma }^0$ Final States
• Strong QCD Insights from Excited Nucleon Structure Studies with CLAS and CLAS12
• Beam-Recoil Polarization Transfer in the Nucleon Resonance Region in the Exclusive $\vec{e}p\to e^{\prime }{K}^{+}\vec{\Lambda }$ and $\vec{e}p\to e^{\prime }{K}^{+}{\vec{\Sigma }}^0$ Reactions at CLAS
• Polarized Structure Function ${\sigma }_{L{T}^{\prime }}$ for $p(\vec{e},e^{\prime }{K}^{+})\Lambda$ in the Nucleon Resonance Region
• Induced polarization of Λ(1116) in kaon electroproduction
• Beam-Recoil Transferred Polarization in $K^{+}Y$ Electroproduction in the Nucleon Resonance Region with CLAS12
• Nucleon Resonance Structure Studies Via Exclusive KY Electroproduction
• Excited Baryon Structure Using Exclusive Reactions with CLAS12