A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $γγ\toπ^+π^-, π^0π^0$ Processes

Details A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $γγ\toπ^+π^-, π^0π^0$ Processes A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $γγ\toπ^+π^-, π^0π^0$ Processes

2009-04-08

arxiv.org/abs/0904.1445v2

Phys.Rev.D79:116008,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages and 13 eps figures. A nuerical bug in previous version is fixed. Some results changed. References and new figures add

Scientific paper

10.1103/PhysRevD.79.116008

We estimate the di-photon coupling of $f_0(600)$, $f_0(980)$ and $f_2(1270)$ resonances in a coupled channel dispersive approach. The $f_0(600)$ di-photon coupling is also reinvestigated using a single channel $T$ matrix for $\pi\pi$ scattering with better analyticity property, and it is found to be significantly smaller than that of a $\bar qq$ state. Especially we also estimate the di-photon coupling of the third sheet pole located near $\bar KK$ threshold, denoted as $f_0^{III}(980)$. It is argued that this third sheet pole may be originated from a coupled channel Breit-Wigner description of the $f_0(980)$ resonance.

Affiliated with

Also associated with

No associations

Rating

A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $γγ\toπ^+π^-, π^0π^0$ Processes 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 A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $γγ\toπ^+π^-, π^0π^0$ Processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $γγ\toπ^+π^-, π^0π^0$ Processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-408150