Single Spin Asymmetries in Charged Pion Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized ³He Target
Add this Pith Number to your LaTeX paper
What is a Pith Number?\usepackage{pith}
\pithnumber{R2Q5UAA3}
Prints a linked pith:R2Q5UAA3 badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more
read the original abstract
We report the first measurement of target single spin asymmetries in the semi-inclusive $^3{He}(e,e'\pi^\pm)X$ reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.14 $< x <$ 0.34 with 1.3 $<Q^2<$ 2.7 GeV$^2$. The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The extracted $\pi^\pm$ Collins moments for $^3$He are consistent with zero, except for the $\pi^+$ moment at $x=0.34$, which deviates from zero by 2.3$\sigma$. While the $\pi^-$ Sivers moments are consistent with zero, the $\pi^+$ Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and the measured cross section ratio of proton to $^3$He, and are largely consistent with the predictions of phenomenological fits and quark model calculations.
This paper has not been read by Pith yet.
Forward citations
Cited by 1 Pith paper
-
Collins asymmetries for pion-in-jet production in polarized $\ell p$ collisions at the EIC
Collins asymmetries for pion-in-jet production in polarized lepton-proton collisions provide clearer access to transversity distributions at the EIC and test the universality of the Collins function.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.