English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

The target and double spin asymmetries of the exclusive pseudoscalar channel$\vec e\vec p\to ep\pi^0$ were measured for the first time in thedeep-inelastic regime using a longitudinally polarized 5.9 GeV electron beamand a longitudinally polarized proton target at Jefferson Lab with the CEBAFLarge Acceptance Spectrometer (CLAS). The data were collected over a largekinematic phase space and divided into 110 four-dimensional bins of $Q^2$,$x_B$, $-t$ and $\phi$. Large values of asymmetry moments clearly indicate asubstantial contribution to the polarized structure functions from transversevirtual photon amplitudes. The interpretation of experimental data in terms ofgeneralized parton distributions (GPDs) provides the first insight on thechiral-odd GPDs $\tilde{H}_T$ and $E_T$, and complement previous measurementsof unpolarized structure functions sensitive to the GPDs $H_T$ and $\bar E_T$.These data provide necessary constraints for chiral-odd GPD parametrizationsand will strongly influence existing theoretical handbag models.

Target and Double Spin Asymmetries of Deeply Virtual $\pi^0$ Production with a Longitudinally Polarized Proton Target and CLAS