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

By assuming that Y(4260) is a D-1(D) over bar molecular state, we investigate some hidden-charm and charmed pair decay channels of Y(4260) via intermediate D-1(D) over bar meson loops with an effective Lagrangian approach. Through investigating the alpha dependence of branching ratios and ratios between different decay channels, we show that the intermediate D-1(D) over bar 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) over bar*, which can be tested in future experiments.