Journal Article

FZJ-2013-06718

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Final-state interactions in the process $\bar pp \to pK^ + \Lambda$

Röder, M. (Corresponding author)FZJ* ; Borodina, E.FZJ* ; Clement, H. ; Doroshkevich, E. ; Dzhygadlo, R.FZJ* ; Ehrhardt, K. ; Eyrich, W. ; Erhardt, A. ; Gast, W.FZJ* ; Gillitzer, A.FZJ* ; Grzonka, D.FZJ* ; Haidenbauer, J.FZJ* ; Hanhart, C.FZJ* ; Hauenstein, F.FZJ* ; Klaja, P.FZJ* ; Kober, L. ; Kilian, K.FZJ* ; Krapp, M. ; Mertens, M.FZJ* ; Ritman, J.FZJ* ; Roderburg, E.FZJ* ; Schroeder, W.FZJ* ; Sefzick, T.FZJ* ; Sibirtsev, A.FZJ* ; Wintz, P.FZJ* ; Wüstner, P.ZEA-2*FZJ*

2013
Springer Berlin

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Please use a persistent id in citations: http://hdl.handle.net/2128/22808  doi:10.1140/epja/i2013-13157-9

Abstract: The possibility to determine the pΛ scattering length from the final-state interaction in the reaction p¯p→pK+Λ is investigated experimentally. From a transversely polarized measurement, the K + analyzing power (A N ) which, in principle, allows one to extract the spin triplet scattering length is studied. An unexpected energy dependence of the forward/backward symmetric part of A N is found. The influence of N * resonances on the pΛ invariant mass spectrum is investigated by exploiting the large acceptance for the process p¯p→pK+Λ→pK+pπ− and is found to be the main source of uncertainty for determining the pΛ scattering length.

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Contributing Institute(s):

1. Experimentelle Hadronstruktur (IKP-1)
2. Zentralinstitut für Elektronik (ZEA-2)
3. Theorie der Starken Wechselwirkung (IAS-4)

Research Program(s):

1. 531 - Hadron Structure and Dynamics (HSD) (POF2-531) (POF2-531)

Appears in the scientific report 2013

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Database coverage:
; Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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