Study off o (995) resonance in the ?0?0 decay channel

Autor: V.D. Samoylenko, Valentine Sugonyaev, V.A. Polyakov, V. A. Lishin, Madjid Boutemeur, M. Poulet, A.V. A.V. Shtannikov, A. A. Kondashov, G.V. Khaustov, M. Gouanère, A.V. Singovsky, Yu.D. Prokoshkin, Vasilij V.A. Kachanov, Andrey Lednev, D. Alde, Alexandre A.V. Inyakin, Alexei A.V. Kulik, Sergey S.A. Polovnikov, Greg Landsberg, Freddy Binon, Sergey Donskov, Sergey S.A. Sadovsky, Petr P.M. Shagin, Edward E.A. Knapp, Charles Bricman, Jean-Pierre Stroot, Jean Pierre Peigneux
Rok vydání: 1995
Předmět:
Zdroj: Zeitschrift f�r Physik C Particles and Fields. 66:375-378
ISSN: 1434-6052
0170-9739
DOI: 10.1007/bf01556362
Popis: A high-statistics study of the π0π0-system produced in the π-p→π0π0n reaction at 38GeV/c has been carried out at the IHEP accelerator using the GAMS-2000 multiphoton spectrometer. A partial-wave analysis which includesS, D0, D− andD+ waves has been performed in the |t|-range up to 1 (GeV/c)2. TheS*/f0(980) resonance is seen as a dip in theS-wave amplitude at small |t|. A distinct peak with a mass of 997±5MeV and a width of 48±10MeV is observed in theS-wave at |t|>0.3 (GeV/c)2. The production cross sections are measured.
Databáze: OpenAIRE
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