EPJ Web of Conferences
Volume 20, 2012Hadron Nuclear Physics 2011 (HNP2011) “Quarks in Hadrons, Nuclei, and Hadronic Matter”
|Number of page(s)||12|
|Published online||10 February 2012|
Quark models for mesons
1 Department of Physics, Nanjing Normal University, Nanjing 210097, P.R. China
2 School of Mathematics and Physics, Chongqing Jiaotong University, Chongqing 400074, P.R. China
3 Department of Physics, Nanjing University, Nanjing 210093, P.R. China
a e-mail: firstname.lastname@example.org
With the advance of experiment, many high excited states of meson are identified. It is found that many of them are difficult to fit into conventional q meson spectra. Various explanations are proposed. One of them is the four-quark states or molecules of two mesons. In the framework of quark model, by taking into account of multi-body interaction, four-quark states are studied. The results show that the scalar mesons: f0(600), f0(980) and Y(2175) can be well described by four-quark states. Furthermore, unquenched quark model, which incorporates the four-quark components in the conventional q states, is constructed for mesons. By readjusting the model parameters, the model can give a good description of mesons. The model is also used to study the newly discovered XYZ particles.
© Owned by the authors, published by EDP Sciences, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.