Dynamics study of $Z^+(4430)$ and X(3872) in molecular picture

Details Dynamics study of $Z^+(4430)$ and X(3872) in molecular picture Dynamics study of $Z^+(4430)$ and X(3872) in molecular picture

2008-02-21

arxiv.org/abs/0802.3157v3

AIP Conf. Proc. 1030 (2008) 346

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, contribution to the Workshop on "Scalar meson and Related topics" (Scadron 70), during Feb 11-16, 2008, at IST, Lisbo

Scientific paper

10.1063/1.2973525

In this talk, we review our recent work about the dynamical studies of $Z^+(4430)$ and X(3872). $Z^+(4430)$ can not be explained as a $D_1'D^*$ or $D_1D^*$ molecular state only considering one pion exchange potential without the cutoff, which needs to be confirmed by introducing sigma exchange potential and adding the cutoff in the effective potential. One also excludes the possibility of X(3872) as a $DD^*$ molecular state by one pion and one sigma exchanges with the cutoff. Fortunately there exists an S-wave $BB^*$ bound state with $J^{PC}=1^{++}$. we suggest future experiment to search this state.

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