On the two-photon decay width of the sigma meson

Details On the two-photon decay width of the sigma meson On the two-photon decay width of the sigma meson

2007-10-17

arxiv.org/abs/0710.3403v2

Phys.Rev.D77:034007,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures

Scientific paper

10.1103/PhysRevD.77.034007

We shortly report on the two-photon decay width of the light $\sigma$-meson interpreted as a quarkonium state. Results are given in dependence on the $\sigma$-mass and the constituent mass of the light quark. The triangle quark-loop diagram, responsible for the two-photon transition, is carefully evaluated: a term in the transition amplitude, often omitted in literature, results in destructive interference with the leading term. As a result we show that the two-photon decay width of the $\sigma $ in the quarkonium picture is less than 1 keV for the physical range of parameters.

Affiliated with

Also associated with

No associations

Rating

On the two-photon decay width of the sigma meson 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 On the two-photon decay width of the sigma meson, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the two-photon decay width of the sigma meson will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-460545