Is Upsilon(3S) a pure S-wave?

Details Is Upsilon(3S) a pure S-wave? Is Upsilon(3S) a pure S-wave?

1993-01-19

arxiv.org/abs/hep-ph/9301249v1

Phys.Rev.D48:1212-1219,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages (Latex), 2 figures (not included) available on request from Sun Myong Kim. UMN-TH-1122/92

Scientific paper

10.1103/PhysRevD.48.1212

Assuming the QCD multipole expansion is applicable to hadronic transitions of Upsilon(3S) into lower level bottomonia, we consider the possibility that Upsilon(3S) has a D-wave component. This assumption leads to a natural explanation of the pi-pi spectrum in Upsilon(3S) -> Upsilon(1S) pi-pi. Consequences of this assumption on other hadronic and radiative transitions of Upsilon(3S) are also discussed in the same context.

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