Journal Article

PreJuSER-54767

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Can one extract the pi-neutron scattering length from pi-deuteron scattering?

Nogga, A.FZJ* ; Hanhart, C.FZJ*

2006
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/10608  doi:10.1016/j.physletb.2005.12.071

Abstract: We give a proof of evidence that the original power counting by Weinberg can be applied to estimate the contributions of the operators contributing to the pi-deuteron scattering length. As a consequence, pi-deuteron observables can be used to extract neutron amplitudes-in case of pi-deuteron scattering this means that the pi-neutron scattering length can be extracted with high accuracy. This result is at variance with recent claims. We discuss the origin of this difference. (c) 2006 Elsevier B.V. All rights reserved.

Keyword(s): pi deuteron: interaction ; pi n: scattering length ; deuteron: wave function ; exchange: one-pion ; effect: nonperturbative ; few-body problem: correction ; numerical calculations

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2006

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