Prospects for detection of $Υ(1D) \to Υ(1S) ππ$ via $Υ(3S) \to Υ(1D) + X$

Details Prospects for detection of $Υ(1D) \to Υ(1S) ππ$ via $Υ(3S) \to Υ(1D) + X$ Prospects for detection of $Υ(1D) \to Υ(1S) ππ$ via $Υ(3S) \to Υ(1D) + X$

2003-02-14

arxiv.org/abs/hep-ph/0302122v4

Phys.Rev.D67:097504,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, LaTeX, 1 figure, to be published in Phys. Rev. D, comment added after Eq. (2)

Scientific paper

10.1103/PhysRevD.67.097504

At least one state in the first family of D-wave $b \bar b$ quarkonium levels has been discovered near the predicted mass of 10.16 GeV/$c^2$. This state is probably the one with J=2. This state and the ones with J=1 and J=3 may contribute a detectable amount to the decay $\Upsilon(1D) \to \Upsilon(1S) \pi \pi$, depending on the partial widths for these decays for which predictions vary considerably. The prospects for detection of the chain $\Upsilon(3S) \to \Upsilon(1D) + X \to \Upsilon \pi \pi + X$ are discussed.

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