Production of $a_0$-mesons in the reactions $πN \to a_0 N$ and $p p \to d a_0^+$ at GeV energies

Details Production of $a_0$-mesons in the reactions $πN \to a_0 N$ and $p p \to d a_0^+$ at GeV energies Production of $a_0$-mesons in the reactions $πN \to a_0 N$ and $p p \to d a_0^+$ at GeV energies

2000-07-31

arxiv.org/abs/nucl-th/0007074v1

Eur.Phys.J. A9 (2000) 277-285

Physics

Nuclear Physics

Nuclear Theory

9 pages, including 6 eps figures

Scientific paper

10.1007/s100500070045

We investigate the reactions $\pi N \to a_0 N$ and $p p \to d a_0^+$ near threshold and at medium energies. An effective Lagragian approach and the Regge pole model are applied to analyze different contributions to the cross section of the reaction $\pi N \to a_0 N$. These results are used to calculate the differential and total cross sections of the reaction $p p \to d a_0^+$ within the framework of the two-step model in which two nucleons produce an $a_0$-meson via $\pi$ -meson exchange and fuse to a deuteron. The necessity of new measurements on $a_0$ production and branching fractions (of its decay to the $K\bar K$ and $\pi\eta$ channels) is emphasized for clarifying the $a_0$ structure. Detailed predictions for the reaction $pp \to d a_0^+$ are presented for the energy regime of the proton synchrotron COSY-J\"ulich.

Affiliated with

Also associated with

No associations

Rating

Production of $a_0$-mesons in the reactions $πN \to a_0 N$ and $p p \to d a_0^+$ at GeV 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 Production of $a_0$-mesons in the reactions $πN \to a_0 N$ and $p p \to d a_0^+$ at GeV energies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of $a_0$-mesons in the reactions $πN \to a_0 N$ and $p p \to d a_0^+$ at GeV energies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-301847