Low-energy D^*+D1^0 scattering and the nature of resonance-like structure Z^+(4430)
Low-energy scattering of D ^*+ and D1^0 meson is studied using quenched lattice QCD with improved lattice actions on anisotropic lattices.The threshold scattering parameters,namely the scattering length a 0 and the effective range r 0,for the s-wave scattering in J P = 0 - channel are extracted: a...
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Published in | Chinese physics C no. 9; pp. 1372 - 1374 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
2010
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Subjects | |
Online Access | Get full text |
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Summary: | Low-energy scattering of D ^*+ and D1^0 meson is studied using quenched lattice QCD with improved lattice actions on anisotropic lattices.The threshold scattering parameters,namely the scattering length a 0 and the effective range r 0,for the s-wave scattering in J P = 0 - channel are extracted: a 0 = 2.52(47) fm and r 0 = 0.7(1) fm.It is argued that,albeit the interaction between the two charmed mesons being attractive,it is unlikely that they can form a shallow bound state in this channel.Our calculation provides some useful information on the nature of the newly discovered resonance-like structure Z + (4430) by the Belle Collaboration. |
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Bibliography: | TN386.1 O572.33 D^* -D1 scattering; resonance-like structure Z + (4430); lattice QCD resonance-like structure Z + (4430) D^* -D1 scattering 11-5641/O4 lattice QCD |
ISSN: | 1674-1137 0254-3052 |