ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The polarization of theΛ 0 hyperon produced inK − p interactions at 110 GeV/c shows a strong dependence on the transverse momentump t of theΛ 0 and no significant dependence onx F . The polarization for largep t is negative in the proton hemisphere and positive in the kaon hemisphere. In theproton hemisphere it is compared with the results of otherK − p experiments at lower energies as well as with reactions induced byp, $$\bar p$$ , π+, π+ andK +. The comparison is performed separately forK − p→Λ 0 KK+pions andK − p→Λ 0+pions showing an analogous behaviour in the former channel. In thekaon hemisphere the comparison with otherK − p experiments at lower energy shows ap t -dependence of theΛ 0 polarization which changes with energy. The experimental results are discussed in terms of current quark models and of the Mueller-Regge phenomenology. The model predictions reproduce the trend of the data qualitatively well but fail in describing some details.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01550249
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