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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2014-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20148105022 |