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Hadronic-loop induced mass shifts in scalar heavy-light mesons | | Feng-Kun Guo
; Siegfried Krewald
; Ulf-G. Meissner
; | | Date: |
18 Dec 2007 | | Abstract: | We calculate the mass shifts of heavy-light scalar mesons due to hadronic
loops under the assumption that these vanish for the groundstate heavy-light
mesons. The results show that the masses calculated in quark models can be
reduced significantly. We stress that the mass alone is not a signal for a
molecular interpretation. Both the resulting mass and the width suggest the
observed $D_0^*$ state could be a dressed $car q$ state. We give further
predictions for the bottom scalar mesons which can be used to test the dressing
mechanism. | | Source: | arXiv, 0712.2953 | | Services: | Forum | Review | PDF | Favorites | |
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