Another look at the angular distributions of the $γγ\toππ$ reactions
| dc.creator | Kaloshin, A. E. | |
| dc.creator | Persikov, V. M. | |
| dc.creator | Serebryakov, V. V. | |
| dc.date | 1995-04-07 | |
| dc.date | 1995-04-17 | |
| dc.date.accessioned | 2026-07-07T09:00:22Z | |
| dc.date.available | 2026-07-07T09:00:22Z | |
| dc.description | We analyze the existing data on the angular distributions of the $γγ\to π^+ π^- ,π^0 π^0$ reactions with using of the unitary model for helicity 2 amplitude. The purpose is to obtain the D--wave parameters and S--wave cross section. We obtain from experiment in the first time the values of $α+ β$ for sum of the electric and magnetic pion's polarizabilities. We found the S-wave cross sections much smaller as compared with previous similar analysis. Comparison of the $γγ\to π^+ π^-$ and $γγ\to π^0 π^0$ data gives an indication for a marked I = 2, J = 2 contribution in region of $f_2(1270)$. | |
| dc.description | 16 pages, four figures (POSTSCRIPT) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9504261 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9504261 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147990 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Another look at the angular distributions of the $γγ\toππ$ reactions | |
| dc.type | text |