Properties of the $π^0$, $η$, $η'$, $σ$, $f_0(980)$ and $a_0(980)$ mesons and their relevance for the polarizabilities of the nucleon

Details Properties of the $π^0$, $η$, $η'$, $σ$, $f_0(980)$ and $a_0(980)$ mesons and their relevance for the polarizabilities of the nucleon Properties of the $π^0$, $η$, $η'$, $σ$, $f_0(980)$ and $a_0(980)$ mesons and their relevance for the polarizabilities of the nucleon

2007-12-10

arxiv.org/abs/0712.1417v1

Eur.Phys.J.A34:293-301,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1140/epja/i2007-10506-3

The signs and values of the two-photon couplings $F_{M\gamma\gamma}$ of mesons $(M)$ and their couplings $g_{MNN}$ to the nucleon as entering into the $t$-channel parts of the difference of the electromagnetic polarizabilities $(\alpha-\beta)$ and the backward angle spin polarizabilities $\gamma_\pi$ are determined. The excellent agreement achieved with the experimental polarizabilities of the proton makes it possible to make reliable predictions for the neutron. The results obtained are $\alpha_n=13.4\pm 1.0$, $\beta_n=1.8\mp 1.0$ ($10^{-4}$ fm$^3$), and $\gamma^{(n)}_\pi=57.6\pm 1.8$ ($10^{-4}$ fm$^4$). New empirical information on the flavor wave functions of the $f_0(980)$ and the $a_0(980)$ meson is obtained.

Affiliated with

Also associated with

No associations

Rating

Properties of the $π^0$, $η$, $η'$, $σ$, $f_0(980)$ and $a_0(980)$ mesons and their relevance for the polarizabilities of the nucleon 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 Properties of the $π^0$, $η$, $η'$, $σ$, $f_0(980)$ and $a_0(980)$ mesons and their relevance for the polarizabilities of the nucleon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of the $π^0$, $η$, $η'$, $σ$, $f_0(980)$ and $a_0(980)$ mesons and their relevance for the polarizabilities of the nucleon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-405196