Structure of the sigma meson and the softening

Details Structure of the sigma meson and the softening Structure of the sigma meson and the softening

2010-07-13

arxiv.org/abs/1007.2031v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures, 1 table, talk give at HNP09, November 16-19, 2009, RCNP, Osaka University

Scientific paper

We study the structure of the sigma meson, the lowest-lying resonance of the pi pi scattering in the scalar-isoscalar channel, through the softening phenomena associated with the partial restoration of chiral symmetry. We build dynamical chiral models to describe the pi pi scattering amplitude, in which the sigma meson is described either as the chiral partner of the pion or as the dynamically generated resonance through the pi pi attraction. It is shown that the internal structure is reflected in the softening phenomena; the softening pattern of the dynamically generated sigma meson is qualitatively different from the behavior of the chiral partner of the pion. On the other hand, in the symmetry restoration limit, the dynamically generated sigma meson behaves similarly to the chiral partner.

Affiliated with

Also associated with

No associations

Rating

Structure of the sigma meson and the softening does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Structure of the sigma meson and the softening, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure of the sigma meson and the softening will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-350450