A measurement of Ξ- polarization in inclusive production by Σ- of 340 GeV/c in C and Cu targets Article uri icon

abstract

  • 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%25 at large xF. © Springer-Verlag / Società Italiana di Fisica 2004.

authors

publication date

  • 2004-01-01