EPJ Web of Conferences
Volume 72, 2014International Symposium Lepton and Hadron Physics at Meson-Factories
|Number of page(s)||6|
|Published online||06 May 2014|
The X(3872) as a charmonium state plus an extra component due to continuum coupling effects
1 INFN, Sezione di Genova, via Dodecaneso 33, 16146 Genova, ( Italy )
2 Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510 México DF, México
Published online: 6 May 2014
We discuss the results of an unquenched quark model (UQM) calculation of the self energy corrections to charmonium spectrum due to the coupling to the meson-meson continuum. In our approach, the effects of quark-antiquark pairs are introduced explicitly into the QM through a 3P0 quark-antiquark pair-creation mechanism. Our results are fitted to the experimental data, so that the sum of the bare and self energies gives the values of the physical masses of the states of interest. Our results for the charmonium spectrum are used to discuss the nature of the X(3872) resonance.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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.