Journal Article

PreJuSER-33091

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png 3He structure and mechanisms of p3He backward elastic scattering

Uzikov, Y. N. ; Haidenbauer, J.FZJ*

2003
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/1630  doi:10.1103/PhysRevC.68.014001

Abstract: The mechanism of p He-3 backward elastic scattering is studied. It is found that the triangle diagrams with the subprocesses pd-->He-3 pi(0), pd*-->He-3 pi(0), and p(pp)-->He-3 pi(+), where d* and pp denote the singlet deuteron and diproton pair in the S-1(0) state, respectively, dominate in the cross section at 0.3-0.8 GeV, and their contribution is comparable with that for a sequential transfer of a np pair at 1-1.5 GeV. The contribution of the d*+pp, estimated on the basis of the spectator mechanism of the p(NN)-->He-3 pi reaction, increases the p He-3-->He-3 p cross section by one order of magnitude as compared to the contribution of the deuteron alone. Effects of the initial and final states' interaction are taken into account.

Keyword(s): p nucleus: elastic scattering ; helium: nuclide ; backscatter ; pi: exchange ; initial-state interaction ; final-state interaction ; p deuteron: nuclear reaction ; deuteron: singlet ; bound state: (2p) ; differential cross section: energy dependence ; numerical calculations: interpretation of experiments ; < 2 GeV

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 2 (Experimentelle Kernphysik II) (IKP-E-2)
2. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen (M01)

Appears in the scientific report 2003
Notes: This version is available at the following Publisher URL: http://prc.aps.org

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