Journal Article

FZJ-2017-05207

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Determination of the spin triplet p Λ scattering length from the final state interaction in the p ⃗ p → p K + Λ reaction

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

2017
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/14962  doi:10.1103/PhysRevC.95.034001

Abstract: The ⃗pp→pK+Λ reaction has been measured with the COSY-TOF detector at a beam momentum of 2.7GeV/c. The polarized proton beam enables the measurement of the beam analyzing power by the asymmetry of the produced kaon (AKN). This observable allows the pΛ spin triplet scattering length to be extracted for the first time model independently from the final state interaction in the reaction. The obtained value is at=(−2.55+0.72−1.39stat.±0.6syst.±0.3theo.)fm. This value is compatible with theoretical predictions and results from model-dependent analyses.

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Contributing Institute(s):

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

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF3-612) (POF3-612)

Appears in the scientific report 2017

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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