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Exclusive <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>η</mml:mi></mml:math> electroproduction at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>W</mml:mi><mml:mo>></mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> GeV with CLAS and transversity generalized parton distributions
The cross section of the exclusive $\ensuremath{\eta}$ electroproduction reaction $ep\ensuremath{\rightarrow}{e}^{\ensuremath{'}}{p}^{\ensuremath{'}}\ensuremath{\eta}$ was measured at Jefferson Laboratory with a 5.75 GeV electron beam and the CLAS detector. Differential cross sections ${d}^{4}\ensuremath{\sigma}/dtd{Q}^{2}d{x}_{B}d{\ensuremath{\phi}}_{\ensuremath{\eta}}$ and structure functions ${\ensuremath{\sigma}}_{U}={\ensuremath{\sigma}}_{T}+\ensuremath{\epsilon}{\ensuremath{\sigma}}_{L},\phantom{\rule{4pt}{0ex}}{\ensuremath{\sigma}}_{TT}$, and ${\ensuremath{\sigma}}_{LT}$, as functions of $t$, were obtained over a wide range of ${Q}^{2}$ and ${x}_{B}$. The …