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Charmed meson resonances from chiral coupled-channel dynamics | | E.E. Kolomeitsev
; M.F.M. Lutz
; | | Date: |
17 Nov 2003 | | Subject: | hep-ph | | Affiliation: | NBI, Copenhagen) and M.F.M. Lutz (GSI, TU, Darmstadt | | Abstract: | Charmed meson resonances with quantum numbers J^P=0^+ and J^P=1^+ are generated in terms of chiral coupled-channel dynamics. At leading order in the chiral expansion a parameter-free prediction is obtained for the scattering of Goldstone bosons off charmed pseudo-scalar and vector mesons. The recently announced narrow open charm states observed by the BABAR and CLEO collaborations are reproduced. We suggest the existence of states that form an anti-triplet and a sextet representation of the SU(3) group. In particular, so far unobserved narrow isospin-singlet states with negative strangeness are predicted. | | Source: | arXiv, hep-ph/0311205 | | Services: | Forum | Review | PDF | Favorites | |
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