Study of ψ(4415) in the QPC model

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ZHAO Shu-Min, LIU Li-Quan, HA Jing, LI Xia and GUO Qing-Lin. Study of ψ(4415) in the QPC model[J]. Chinese Physics C, 2008, 32(10): 793-796. doi: 10.1088/1674-1137/32/10/005
ZHAO Shu-Min, LIU Li-Quan, HA Jing, LI Xia and GUO Qing-Lin. Study of ψ(4415) in the QPC model[J]. Chinese Physics C, 2008, 32(10): 793-796.  doi: 10.1088/1674-1137/32/10/005 shu
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Received: 2007-11-19
Revised: 2008-02-29
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Study of ψ(4415) in the QPC model

    Corresponding author: LIU Li-Quan,

Abstract: 

Some authors consider the ψ(4415) to be the 4S or 5S excited tate of a cc pair. Starting from this assumption, we study he decays of the ψ(4415) to DD, D*D*, DSDS, DS*DS*, and get the corresponding branching ratios in terms of the Quark-Pair-Creation (QPC) model. Compared with the experimental data, we find that the results of 4S state agree much better than those of the 5S state. Therefore, it is more reasonable to assume the ψ(4415) to be a 4S state.

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