Speaker
Yury Naryshkin
(Petersburg Nuclear Physics Institute)
Description
Transverse Lambda and Lambda-bar polarization produced inclusively in quasi-real
photon-nucleon scattering have been studied in the HERMES experiment using a 27.6 GeV
positron beam incident on hydrogen and deuterium gas targets. The average transverse
polarizations were found to be P^{Lambda}_n = 0.078 +- 0.006(stat) +- 0.012(syst)
and P^{bar Lambda}_n = -0.025 +- 0.015(stat) +-0.018 (syst) for Lambda and
barLambda, respectively. The dependence of P^{Lambda}_n on the transverse and
longitudinal
momenta of the Lambda hyperon has been studied.
Primary author
Yury Naryshkin
(Petersburg Nuclear Physics Institute)
