Another look at the angular distributions of the $����\to����$ reactions
| Autor: | Kaloshin, A. E., Persikov, V. M., Serebryakov, V. V. |
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| Rok vydání: | 1995 |
| Předmět: | |
| DOI: | 10.48550/arxiv.hep-ph/9504261 |
| Popis: | We analyze the existing data on the angular distributions of the $����\to ��^+ ��^- ,��^0 ��^0$ 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 $��+ ��$ 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 $����\to ��^+ ��^-$ and $����\to ��^0 ��^0$ data gives an indication for a marked I = 2, J = 2 contribution in region of $f_2(1270)$. 16 pages, four figures (POSTSCRIPT) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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