Improvement of ππ amplitudes and correct position of the σ pole

Improvement of ππ amplitudes and correct position of the σ pole

Meson-meson interaction amplitudes especially ππ scattering amplitudes are often used incorrectly. It also applies to parameters of the σ meson. These causes two significant problems: threshold behavior and position of the σ pole which is suspicious. We modified multichannel S- and P- wave amplitude...

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Bibliographic Details
Main Authors: Nazari V., Bydžovský Petr, Kamiński Robert
Format: Article
Language:English
Published: EDP Sciences 2014-01-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20148105022

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