| Autor: |
Xiao-Yu Guo, Yonggoo Heo, M.F.M. Lutz |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Physics Letters B, Vol 791, Iss , Pp 86-91 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2019.02.022 |
| Popis: |
We consider the flavour sextet of charmed meson resonances with JP=1+ quantum numbers that is predicted by the leading order chiral Lagrangian with up, down and strange quarks. The effect of chiral correction terms as determined previously from QCD lattice data is worked out. Pole masses in the complex energy plane are derived. The most promising signal from such states accessible in experiments like Belle, LHCb and PANDA is foreseen in the s-wave πD⁎ phase shift and the ηD⁎ invariant mass distribution. For physical quark masses a rapid variation of the phase shift in-between the ηD⁎ and the K¯Ds⁎ thresholds is predicted. Keywords: Chiral symmetry, Coupled-channel dynamics, Lattice QCD |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect