Comment on the hadronic decay of excited heavy quarkonia

Details Comment on the hadronic decay of excited heavy quarkonia Comment on the hadronic decay of excited heavy quarkonia

1998-05-18

arxiv.org/abs/hep-ph/9805354v2

Eur.Phys.J.C7:61-63,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, no figures, LaTeX file, To appear in The European Physical Journal (1998)

Scientific paper

10.1007/s100520050384

We make comments on ref.[Z.Phys. C73, 541 (1997)], and provide partial wave analysis to the decays of excited heavy S-wave $1^-$ quarkonia into the basic $1^-$ quarkonia state plus $\pi\pi$. It is revealed that there exist contributions of D-wave transition in $\psi'\longrightarrow J/\psi\pi\pi$, $\Upsilon(2S)\longrightarrow \Upsilon(1S) \pi \pi$ and $\Upsilon(3S)\longrightarrow \Upsilon(1S) \pi \pi$ by using the data-fitting results in ref.[Z.Phys C73, 541 (1997)]. A possible experimental method to measure the D-wave directly is discussed.

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