Title of article
Fixing two chiral perturbation theory parameters by fitting pion-pion phase shifts
Author/Authors
J S?Borges، نويسنده , , J Soares Barbosa، نويسنده , , V Oguri، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
6
From page
413
To page
418
Abstract
In this paper, we fix the parameters ℓ1 and ℓ2 of the one loop corrected chiral perturbation theory by fitting the low energy pion-pion S- and P- experimental phase-shifts. The corresponding values of the scattering lengths are calculated. Related approaches for data fitting, in particular the unitarization program of current algebra, are also discussed.
Keywords
Pion-pion interaction , Chiral symmetry , Current algebra , Unitarity
Journal title
PHYSICS LETTERS B
Serial Year
1996
Journal title
PHYSICS LETTERS B
Record number
907845
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