Direct decays of heavy quarkonia |
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Authors: | N N Achasov A A Kozhevnikov |
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Institution: | Laboratory of Theoretical Physics, Institute for Mathematics, SU-630 090, Novosibirsk 90, USSR |
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Abstract: | The branching ratios are evaluated of the ψ (3770) and (4S) decays into ππ,
, ωπ0, ωη, ωη ′, π, η, η′,
,
. They arise due to the transition through the real intermediate states
and
, respectively. It is shown that some branching ratios exceed the three-gluon one by an order of magnitude. The rates of the decays
, and
are evaluated also. τ-C and B factories coul be good tools for studying all decays mentioned. |
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Keywords: | |
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