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HK: Fachverband Hadronen und Kerne
HK 81: Hadron Structure and Spectroscopy II
HK 81.4: Talk
Friday, March 20, 2009, 11:45–12:00, H-ZO 30
A-dependence of the Lambda polarization — •Yury Naryshkin — PNPI RAS Gatchina, Leningrad district 188300, Russia.
The HERMES experiment has measured transverse polarization of Λ and Λ hyperons produced inclusively at positron beam energy 27.6 GeV in quasi-real photon interaction with series of nuclei in a wide range of atomic numbers A ( 1 H,2 D, 3 He, 4 He, 14 N, 20 Ne, 84 Kr and 131 Xe). Dependence of the Lambda polarization on A is studied.