Charged bottomonium-like structures in the hidden-bottom dipion decays of $Υ(11020)$

Details Charged bottomonium-like structures in the hidden-bottom dipion decays of $Υ(11020)$ Charged bottomonium-like structures in the hidden-bottom dipion decays of $Υ(11020)$

2011-08-22

arxiv.org/abs/1108.4458v2

Phys.Rev.D84:074032,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures, 1 table, More discussions added. Accepted by Phys. Rev. D

Scientific paper

10.1103/PhysRevD.84.074032

Under the Initial Single Pion Emission mechanism, we study the hidden-bottom dipion decays of $\Upsilon(11020)$, i.e., $\Upsilon(11020)\to \Upsilon(nS)\pi^+\pi^-$ $(n=1,2,3)$ and $\Upsilon(11020)\to h_b(mP)\pi^+\pi^-$ $(m=1,2)$. We predict explicit sharp peak structures close to the $B\bar{B}^*$ and $B^*\bar{B}^*$ thresholds and their reflections in the $\Upsilon(1S)\pi^+$, $\Upsilon(2S)\pi^+$ and $h_b(1P)\pi^+$ invariant mass spectrum distributions. We suggest future experiment, i.e., Belle, BaBar, and forthcoming BelleII or Super-B, carry out the search for these novel phenomena, which can provide important test to the Initial Single Emission mechanism existing in higher bottomonia.

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