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Resonances in ηππ and ωω systems studied on the VES setup

✍ Scribed by D Ryabchikov; D Bugg

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
204 KB
Volume
675
Category
Article
ISSN
0375-9474

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✦ Synopsis

Nuclear Physics A675 (2000) 201c-204c =HYSlBS A www.elsevier.nl/locate/npe Resonances in rpr~r and ww systems studied on the VES setup D.Ryabchikov% D.Bugg b, VES collaboration * ~IHEP, Protvino bQWMC, London

The ~r~r and ww systems produced in the It-Be interactions with 37GeV/c ~r-beam have been studied at the VES spectrometer. For the unnatural-parity exchange, the isoscalar channels demonstrate similar structures in ~pr-r + and ww final states, while the amplitudes with I = 1 have the same behaviour for yTc+~r -and y~r-~r °. The I = 0 jPC = 2 ++ amplitudes show the signal of f2( 1565) meson which decays to a2(1320)~r-and ww. The f2(1920) meson is observed in ww. In the I = 0 jPC .= 4++ intensities there are signals from f4(2050) and f4(2330) mesons.

The I = 1 jPC = 3--waves demonstrate the presence of p3(1690) meson in a2(1320)~r and pr] decay modes. 3--waves at higher masses have complex behaviour and can be modelled by the further 3--resonances.

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