Measurement of the Slope Parameter for the eta->3pi0 Decay in the pp->pp eta Reaction
| Autor: | Bashkanov, M., Bogoslawsky, D., Calén, H., Capellaro, F., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kupsc, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Pettersson, H., Povtorejko, A., Ruber, R. J. M. Y., Schönning, K., Scobel, W., Skorodko, T., Shwartz, B., Sopov, V., Stepaniak, J., Tchernyshev, V., Engblom, P. Thörngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wiedner, U., Wolke, M., Yamamoto, A., Zabierowski, J., Złomańczuk, J. |
|---|---|
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Phys.Rev.C76:048201,2007 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.76.048201 |
| Popis: | The CELSIUS/WASA setup is used to measure the 3pi0 decay of eta mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter alpha yielding alpha = -0.026 +/- 0.010(stat) +/- 0.010(syst). This value is compared to recent experimental results and theoretical predictions. Comment: 4 pages, 7 Postscript figures, uses revtex4.sty |
| Databáze: | arXiv |
| Externí odkaz: |
|