Evidence for a resonant behaviour in e+e− annihilation into hadrons,around 1820 MeV,at adone |
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| Authors: | C Bacci G De Zorzi G Penso B Stella R Baldini-Celio G Capon R Del Fabbro E Iarocci GP Murtas M Spinetti |
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| Institution: | 1. Istituto di Fisica dell''Università di Roma, Italy;2. INFN Sezione di Roma, Roma, Italy |
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| Abstract: | Multihadron production has been measured at the Adone e+e? storage ring in the c.m. energy region 1600 ÷ 1900 MeV. A resonant behaviour is observed, centered at 1819 ± 5 (±2) MeV, with a width of 24 ± 5 (±4) MeV. This effect is observed only in the events with 3 or 4 charged particles together with photons, but not in those without photons. |
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