Coupled channel analysis of proton-antiproton annihilation into π0π0π0, π0ηη and π0π0η

We confirm the existence of the two I G ( J PC ) = 0 + (0 ++ ) resonances f 0 (1370) and f 0 (1500) reported by us in earlier analyses. The analysis presented here couples the final states π 0 π 0 π 0 , π 0 π 0 η and π 0 ηη of p p annihilation at rest. It is based on a 3 × 3 K -matrix. We find masse...

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Detalles Bibliográficos
Autores principales: Amsler, C, Armstrong, D.S., Baker, C.A., Barnett, B.M., Batty, C.J., Benayoun, Maurice, Beuchert, K., Birien, P., Blum, P., Bossingham, R., Braune, K., Brose, J., Bugg, D.V., Case, T., Chung, S.U., Cooper, A.R., Cramer, O., Crowe, K.M., Degener, T., Dietz, H.P., Djaoshvili, N., von Dombrowski, S., Doser, M., Dunnweber, Wolfgang, Engelhardt, D., Englert, M., Faessler, M.A., Felix, C., Giarritta, P., Hackmann, R., Haddock, R.P., Heinsius, F.H., Herz, M., Hessey, N.P., Hidas, P., Holzhaussen, C., Illinger, P., Jamnik, D., Kalinowsky, H., Kalteyer, B., Kaemmle, B., Kiel, T., Kisiel, J., Klempt, E., Koch, H., Kobel, M., Kolo, C., Kunze, M., Lakata, M., Landua, R., Luedemann, J., Matthaey, H., McCrady, R., Merlo, J.P., Meyer, C.A., Montanet, L., Noble, A., Ouared, R., Ould-Saada, F., Peters, K., Pinder, C.N., Pinter, G., Ravndal, S., Regenfus, Christian, Schaefer, E., Schmidt, P., Schuetrumpf, M., Seibert, R., Spanier, S., Stoeck, H., Strassburger, C., Strohbusch, U., Suffert, M., Thoma, U., Tischhaeuser, M., Urner, D., Voelcker, C., Walter, F., Walther, D., Wiedner, U., Winter, N., Zoll, J., Zou, B.S., Zupancic, C.
Lenguaje:eng
Publicado: 1995
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(95)00747-9
http://cds.cern.ch/record/911783
Descripción
Sumario:We confirm the existence of the two I G ( J PC ) = 0 + (0 ++ ) resonances f 0 (1370) and f 0 (1500) reported by us in earlier analyses. The analysis presented here couples the final states π 0 π 0 π 0 , π 0 π 0 η and π 0 ηη of p p annihilation at rest. It is based on a 3 × 3 K -matrix. We find masses and widths of M = (1390±30) MeV, Γ = (380±80) MeV; and M = (1500±10) MeV, Γ = (154 ± 30) MeV, respectively. The product branching ratios for the production and decay into π 0 π 0 and ηη of the f 0 (1500) are (1.27 ± 0.33) · 10 −3 and (0.60 ± 0.17) · 10 −3 , respectively.

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