Journal Article

PreJuSER-55018

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the extraction of the quark mass ratio (m_d-m_u)/m_s from gamma (eta` to pi0 pi+ pi-)/gamma (eta` to eta pi+ pi-)

Borasoy, B. ; Nissler, R. ; Meissner, U. G.FZJ*

2006
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/10556  doi:10.1016/j.physletb.2006.10.020

Abstract: The claim that the light quark mass ratio (m(d) - m(u))/m(s) can be extracted from the decay width ratio Gamma(eta' -> pi(0)pi(+)pi(-))/Gamma(eta' -> eta pi(+)pi(-)) is critically investigated within a U(3) chiral unitary framework. The influence of the recent VES data on the eta' -> eta pi(+)pi(-) decay is also discussed. (c) 2006 Elsevier B.V. All rights reserved.

Keyword(s): quark: mass ratio ; quark: mass difference ; eta(958): hadronic decay ; eta: width ; eta: branching ratio ; symmetry: U(3) ; unitarity ; Dalitz plot ; isospin: violation ; partial wave ; numerical calculations: interpretation of experiments ; eta(958) --> pi+ pi- pi0 ; eta(958) --> eta pi+ pi-

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)
2. Jülich-Aachen Research Alliance - Simulation Sciences (JARA-SIM)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2006

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Database coverage:

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