Investigating possible decay modes of Y(4260) under the D₁(2420) D +c.c molecular state ansatz

2013/07/31 by Gang Li, Xiao-Hai Liu · 1 citation
Physics and Astronomy · #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.88.094008

8 pages, 6 figures; The width effects of Y(4260) considered; Revised version accepted by Phys. Rev. D

arxiv created 2013/10/24 · arxiv updated 2015/06/16

Abstract

By assuming that Y(4260) is a D₁ D molecular state, we investigate some hidden-charm and charmed pair decay channels of Y(4260) via intermediate D₁ D meson loops with an effective Lagrangian approach. Through investigating the α-dependence of branching ratios and ratios between different decay channels, we show that the intermediate D₁ D meson loops are crucial for driving these transitions of Y(4260) studied here. The coupled channel effects turn out to be more important in Y(4260) → D^*D^*, which can be tested in the future experiments.

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