Journal Article

PreJuSER-33577

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Charge symmetry breaking as a probe for he real part of eta nucleus scattering lengths

Baru, V.FZJ* ; Haidenbauer, J.FZJ* ; Hanhart, C.FZJ* ; Niskanen, J. A.FZJ*

2003
Inst. Woodbury, NY

This record in other databases:    

Please use a persistent id in citations: http://hdl.handle.net/2128/1682  doi:10.1103/PhysRevC.68.035203

Abstract: We demonstrate that one can use the occurrence of charge symmetry breaking as a tool to explore the eta-nucleus interaction near the eta threshold. Based on indications that the cross section ratio of pi(+) and pi(0) production on nuclei deviates from the isotopic value in the vicinity of the eta production threshold, due to, e.g., pi(0)-eta mixing, we argue that a systematic study of this ratio as a function of the energy would allow to pin down the sign of the real part of the eta-nucleus scattering length. This sign plays an important role in the context of the possible existence of eta-nucleus bound states.

Keyword(s): meson nucleus: scattering length ; eta ; helium: nuclide ; charge: symmetry breaking ; p deuteron: nuclear reaction ; pi+: hadroproduction ; pi0: hadroproduction ; eta: threshold ; differential cross section: ratio ; energy dependence ; numerical calculations ; p deuteron --> tritium pi+ ; p deuteron --> helium-3 pi0

Note: Record converted from VDB: 12.11.2012

---

Contributing Institute(s):

1. 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

---

Database coverage:

---