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Resonances andΛ0polarization in 800GeV/cpp→pdiffractedΛ0K+

Authors
Journal
Nuclear Physics A
0375-9474
Publisher
Elsevier
Publication Date
Volume
721
Identifiers
DOI: 10.1016/s0375-9474(03)01186-2

Abstract

Abstract Λ 0 polarization from pp → p diffracted Λ 0 K +at 800 GeV/ c in the average depends linearly on Λ 0 K + invariant mass: Λ 0 polarization is 0.635 ± 0.036 at 1.64 GeV, consistent with zero at ≈ 2.195 GeV, and −0.586 ± 0.072 at 3.200 GeV. The origin of this Λ 0 polarization is, probably, the interference of at least two Λ 0 K + resonances, created from the excitation of the target proton, due to the diffracted proton transfered momentum.

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