PHIPSI13 - International Workshop on e+e- collisions from Phi to Psi 2013

Comparative study of the production of scalar and tensor mesons in e+e- collisions

10 Sept 2013, 14:05

3h 25m

Dip. di Fisica - "Sapienza" Universita' di Roma - G. Marconi building

Poster session

Speaker

Mr Alexey Kiselev (Sobolev Institute for Mathematics)

Description

The intensity of scalar $a_0(980)$, $f_0(980)$ and tensor $a_2(1320)$, $f_2(1270)$ mesons production at VEPP-2000 (BINP, Novosibirsk) and, possibly, the upgraded DA$\mathrm{\Phi }$NE (Frascati, Italy) in the processes $e^{+}{e}^{-}\to a_0(f_0$, $a_2$, $f_2)\gamma$ is calculated with the help of VDM and the kaon loop model (for scalar mesons case). The processes $e^{+}{e}^{-}\to a_2(f_2)\gamma$ have not been seen in the energy region $1.5-2.0$ GeV. It turned out that at this energies $\sigma (e^{+}{e}^{-}\to a_2(f_2)\gamma )\sim 10$ pb and $\sigma (e^{+}{e}^{-}\to a_0(f_0)\gamma )\sim 0.1$ pb. Photon angle distribution, the spin density matrices of $a_2$ and $f_2$ and the background situation will be reported also