A unitarity analysis on the I=0 $d$ wave $ππ$ scattering amplitude

Details A unitarity analysis on the I=0 $d$ wave $ππ$ scattering amplitude A unitarity analysis on the I=0 $d$ wave $ππ$ scattering amplitude

2005-08-03

arxiv.org/abs/hep-ph/0508040v2

JHEP 0512:019,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

replaced by the version published in JHEP 0512 (2005) 019. Especially the mistake in the title is corrected

Scientific paper

10.1088/1126-6708/2005/12/019

We study I=0 $d$ wave $\pi\pi$ scattering phase shift using a proper unitarization approach. It is verified that the $f_2(1270)$ resonance corresponds to a twin pole structure: one on the second sheet, another one on the third sheet. Also we find fair agreement on $f_2(1270)$ pole's mass and width between our results and the PDG values. Besides, our analysis reveals the existence of a virtual state in this channel. Its pole location is determined by fitting experimental data and it is found to be in good agreement with the prediction from chiral perturbation theory. Our analysis demonstrates that partial wave amplitudes calculated in chiral perturbation theory are reliable in the small $|s|$ region, contrary to some unitarization models.

Affiliated with

Also associated with

No associations

Rating

A unitarity analysis on the I=0 $d$ wave $ππ$ scattering amplitude 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 unitarity analysis on the I=0 $d$ wave $ππ$ scattering amplitude, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A unitarity analysis on the I=0 $d$ wave $ππ$ scattering amplitude will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-39978