NDLI: Spin structure of $\bar{p}p\rightarrow\bar{\Lambda}\Lambda$

Content Provider	Springer Nature Link
Author	Alberg, Mary
Copyright Year	2009
Abstract	A complete determination of spin observables for $\bar{p}p\rightarrow\bar{\Lambda}\Lambda$ , at an antiproton lab momentum of 1.637 GeV/c, has been made by the PS185 Collaboration. Results of this experiment disagree strongly with the predictions of calculations which used either meson exchange or quark models for the reaction mechanism. We use a model-independent description of the spin structure of this reaction to show that, in the absence of initial and final state interactions, pure spin singlet or pure spin triplet reaction mechanisms require that depolarization D nn and spin transfer K nn are equal, in disagreement with experiment. We also show that a superposition of singlet and triplet reaction mechanisms allow D nn ≠ K nn , as required by experiment.
Ending Page	330
Page Count	4
Starting Page	327
File Format	PDF
ISSN	03043843
e-ISSN	15729540
Journal	Hyperfine Interactions
Issue Number	1-3
Volume Number	194
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-08-29
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Condensed Matter Physics Polarization Nuclear Physics, Heavy Ions, Hadrons Antiproton Spin observables Atomic, Molecular, Optical and Plasma Physics Quark models Surfaces and Interfaces, Thin Films Lambda
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry Condensed Matter Physics

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