Transverse polarization of $\Lambda$ hyperons from quasireal photoproduction on nuclei

Abstract

The transverse polarization of $\Lambda$ hyperons was measured in inclusive quasireal photoproduction for various target nuclei ranging from hydrogen to xenon. The data were obtained by the HERMES experiment at HERA using the 27.6 GeV lepton beam and nuclear gas targets internal to the lepton storage ring. The polarization observed is positive for light target nuclei and is compatible with zero for krypton and xenon.

final version to be published in Phys. Rev. D (in press)

References in corpus (2)

• An Observation Concerning the Process Dependence of the Sivers Functions
• Towards an explanation of transverse single-spin asymmetries in proton-proton collisions: the role of fragmentation in collinear factorization

Cited by in corpus (5)

• Parton Fragmentation Functions
• Single-spin asymmetries in the leptoproduction of transversely polarized $\Lambda$ hyperons
• Twist-3 Gluon Fragmentation Contribution to Polarized Hyperon Production in Unpolarized Proton-Proton Collision
• Measurement of transverse $\Lambda$ and $\bar{\Lambda }$ hyperon polarization in $p$Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• Global $\Lambda$ hyperon polarization in low-energy heavy ion collisions -- a scenario without vorticity