Further amplitude analysis of J / psi ---> gamma (pi+ pi- pi+ pi-)

Bugg, D.V.; Scott, I.; Zou, B.S.; Anisovich, V.V.; Sarantsev, A.V.; Burnett, T.H.; Sutlief, S.

doi:10.1016/0370-2693(95)00525-P

Further amplitude analysis of J / psi ---> gamma (pi+ pi- pi+ pi-)

D.V. Bugg
(
- Queen Mary, U. of London
)
,
I. Scott
(
- Queen Mary, U. of London
)
,
B.S. Zou
(
- Queen Mary, U. of London
)
,
V.V. Anisovich
(
- St. Petersburg, INP
)
,
A.V. Sarantsev
(
- St. Petersburg, INP
)

1995

7 pages

Published in:

Phys.Lett.B 353 (1995) 378-384

DOI:

10.1016/0370-2693(95)00525-P

PDG: 4

{{\mathit \pi}}

MODE

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Abstract: (Elsevier)

Mark III data on J Ψ → γ(π + π − π + π − ) have been re-analysed including γσσ final states as well as γϱϱ. Here σ stands for the ππ S-wave amplitude. We fit with I = 0 resonances having J PC = 2 ++ at 1275 MeV, 0 −+ at 1420 MeV, 0 ++ at 1505 MeV, 2 ++ at 1640 MeV, 0 ++ at 1750 MeV and 0 ++ at 2104 MeV. The 0 ++ resonances decay dominantly to σσ and the 2 ++ resonances to ϱϱ.

postulated particle: f0(1505)
amplitude analysis
scalar meson: f0(600)
rho(770)
angular distribution
numerical calculations
interpretation of experiments: MARK III
J/psi(3100): radiative decay
radiative decay: J/psi(3100)
J/psi(3100) --> 2pi+ 2pi- photon

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Figures(0)

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