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Experimental determination of the complete spin structure for p¯p→ Λ¯Λ at p{p¯}= 1.637 GeV/c

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/20521

Experimental determination of the complete spin structure for p¯p→ Λ¯Λ at p{p¯}= 1.637 GeV/c

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Title: Experimental determination of the complete spin structure for p¯p→ Λ¯Λ at p{p¯}= 1.637 GeV/c
Author: Fields, Douglas E.; Paschke, K. D.; Quinn, B.; Berdoz, A.; Franklin, G. B.; Khaustov, P.; Meyer, C. A.; Bradtke, C.; Gehring, R.; Goertz, S.; Harmsen, J.; Meier, A.; Meyer, W.; Radtke, E.; Reicherz, G.; Dutz, H.; Pluckthun, M.; Schoch, B.; Dennert, H.; Eyrich, W.; Hauffe, J.; Metzger, A.; Moosburger, M.; Stinzing, F.; Wirth, St.; Fischer, H.; Franz, J.; Heinsius, F. H.; Kriegler, E.; Schmitt, H.; Bunker, B.; Hertzog, D.; Jones, T.; Tayloe, R.; Broders, R.; Geyer, R.; Kilian, K.; Oelert, W.; Rohrich, K.; Sachs, K.; Sefzick, T.; Bassalleck, B.; Eilerts, S.; Kingsberry, P.; Lowe, J.; Stotzer, R.; Johansson, T.; Pomp, S.
Abstract: The reaction p.p → ^^ → .pπ+pπ− has been measured with high statistics at a beam momentum of pp. = 1.637 GeV/c. The use of a transversely polarized frozen-spin target combined with the self-analyzing property of ^/^ decay allows access to unprecedented information on the spin structure of the interaction. The most general spin-scattering matrix can be written in terms of 11 real parameters for each bin of scattering angle; each of these parameters is determined with reasonable precision. From these results, all conceivable spin correlations are determined with inherent self-consistency. Good agreement is found with the few previously existing measurements of spin observables in p.p → ^^ near this energy. Existing theoretical models do not give good predictions for those spin observables that had not been previously measured.
Date: 2006-07-25
Publisher: American Physical Society
Citation: Physical Review C, 74(1): 1-21
Description: DOI: 10.1103/PhysRevC.74.015206
URI: http://hdl.handle.net/1928/20521


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