Dynamically generated open and hidden charm meson systems
By D. Gamermann, E. Oset, D. Strottman, M. Vacas. 2006
199 citations recorded by the source corpus.
We will study open and hidden charm scalar meson resonances within two different models. The first one is a direct application of a chiral Lagrangian already used to study flavor symmetry breaking in Skyrme models. In another approach to the problem a SU(4) symmetric Lagrangian is built and the symmetry is broken down to SU(3) by identifying currents where heavy mesons are exchanged and suppressing those. Unitarization in coupled channels leads to dynamical generation of resonances in both models, in particular, a new hidden charm resonance with mass 3.7 GeV is predicted. The small differences between these models and with previous works is discussed. We also perform an error analysis of the results, checking their stability and determining the uncertainties in masses and couplings of the heavy resonances.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/422a66b9b4eac255ed106d919803028492dc4c23
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In Nuclear and High Energy Physics
Citations in the corpus
- The XYZ states: Experimental and theoretical status and perspectives (2019, background): “[564, 566, 567] all find a resonance with a mass about 3700 MeV that couples to DD̄ strongly and is interpreted as a DD̄ molecular state.”
- Exotic Hadrons from Heavy Ion Collisions (2017, background): “There have thus been extensive discussions on the Ds0(2317), such as a cs̄ state [112, 113, 114, 115, 116], two-meson molecular state [117, 118, 119, 120, 121, 122], D-K mixing [123], tetraquark state [124, 125, 126, 127], or a mixture of two-meson and tetraquark states [128].”
- Hadronic molecules (2017, background): “…et al., 2016c; Barnes et al., 2003; van Beveren and Rupp, 2003; Cleven et al., 2014a, 2011b; Faessler et al., 2007; Flynn and Nieves, 2007; Gamermann et al., 2007; Guo et al., 2007, 2006; Hofmann and Lutz, 2004; Kolomeitsev and Lutz, 2004; Szczepaniak, 2003; Wu and Zhao, 2012), while…”