The light sigma meson

Details The light sigma meson The light sigma meson

2000-06-09

arxiv.org/abs/hep-ph/0006083v1

Eur.Phys.J. A8 (2000) 401-404

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, LaTeX, 3 EPS figures, epsfig.sty

Scientific paper

10.1007/s100500070093

In the framework of the dispersion relation N/D-approach, we restore the
low-energy pi-pi (IJ^{PC}=00^{++})-wave amplitude sewing it with the previously
obtained K-matrix solution for the region 450-1900 MeV. The restored
N/D-amplitude has a pole on the second sheet of the complex-s plane near the
pi-pi threshold, that is the light sigma meson.

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