Bound States of Heavy Mesons by Pion-Exchange Approach

Details Bound States of Heavy Mesons by Pion-Exchange Approach Bound States of Heavy Mesons by Pion-Exchange Approach

2010-12-29

arxiv.org/abs/1012.5949v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 5 figures

Scientific paper

We calculate the two-pion exchange potential of $D\bar{D}$ and $D\bar{D}^{*}$ by using Gaussian type form factor to regularize loop integrals. Then we discuss the possibility of the molecule states composed of D mesons. Our results show it is very difficult to bind $D\bar{D}^{*}$ by pure pions exchange. On the contrary, the possibility of the $D\bar{D}$ molecule state existence cannot be completely ruled out. We also extend our discussion to $B\bar{B}$ and $B\bar{B}^{*}$.

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