On the determination of $σ$ from experimental data on the $ππ$ isoscalar $S$-wave at low energies

Details On the determination of $σ$ from experimental data on the $ππ$ isoscalar $S$-wave at low energies On the determination of $σ$ from experimental data on the $ππ$ isoscalar $S$-wave at low energies

2008-04-14

arxiv.org/abs/0804.2108v1

AIPConf.Proc.1030:226-231,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, talk at SCADRON 70 (Workshop on Scalar Mesons and Related Topics, Lisbon, 11-16 February 2008)

Scientific paper

10.1063/1.2973503

We investigate the determination of the pole associated to $\sigma$ from $\pi\pi$ scattering data below the $K\bar{K}$ threshold, including the new precise data from $K_{e4}$ decay reported recently by the NA48/2 Collaboration. Using a large class of analytic parametrizations based on expansions in powers of conformal variables, we obtain for the mass and width of $\sigma$ values which are consistent with those calculated recently using ChPT and Roy equations, but have larger theoretical uncertainties.

Affiliated with

Also associated with

No associations

Rating

On the determination of $σ$ from experimental data on the $ππ$ isoscalar $S$-wave at low energies 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 determination of $σ$ from experimental data on the $ππ$ isoscalar $S$-wave at low energies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the determination of $σ$ from experimental data on the $ππ$ isoscalar $S$-wave at low energies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-71119