We have measured the polarization of Ξ- hyperons produced inclusively by a Σ- beam of 340 GeV/c momentum in nuclear targets. From a sample of 880000 identified Ξ- decays, polarizations were determined in the range 0 < xF < 0.9 and pt ≤ 1.6 GeV/c. The polarization w.r.t. the production normal is negative for xF ≥ 0.3. At fixed values of xF, its magnitude increases with pt to maximum values which reach about 20% at large xF.
All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)
- Physics and Astronomy (miscellaneous)