科研之友
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摘要
We study the final-state-interaction contributions to the transitions from the Z(b)(10610) and Z(b)(10650) to S-wave bottomonium via pi, rho, and photon emission. Our estimations indicate that the final-state interaction plays important roles in the hidden bottom decays of Z(b)(10610) and Z(b)(10650). With this mechanism, the branching ratios of the observed Upsilon(nS)pi (n = 1, 2, 3) channels could be reproduced and the branching ratios of Z(b)(10610)/Z(b)(10650) -> eta(b)(mS)rho/gamma (m = 1, 2) are predicted, which could be further tested at Belle II in the near future.
- 出版日期2017-7-31
- 单位东南大学; 中国科学院近代物理研究所; 中国科学院大学
