The X(3872) as a charmonium state plus an extra component due to continuum coupling effects
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 pai...
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2014-05-01
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Online Access: | http://dx.doi.org/10.1051/epjconf/20147200008 |
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doaj-f86be01bf4ef41f29c717d83762ba0852021-08-02T05:29:05ZengEDP SciencesEPJ Web of Conferences2100-014X2014-05-01720000810.1051/epjconf/20147200008epjconf_lhpm2013_00008The X(3872) as a charmonium state plus an extra component due to continuum coupling effectsFerretti J. 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. http://dx.doi.org/10.1051/epjconf/20147200008 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ferretti J. |
spellingShingle |
Ferretti J. The X(3872) as a charmonium state plus an extra component due to continuum coupling effects EPJ Web of Conferences |
author_facet |
Ferretti J. |
author_sort |
Ferretti J. |
title |
The X(3872) as a charmonium state plus an extra component due to continuum coupling effects |
title_short |
The X(3872) as a charmonium state plus an extra component due to continuum coupling effects |
title_full |
The X(3872) as a charmonium state plus an extra component due to continuum coupling effects |
title_fullStr |
The X(3872) as a charmonium state plus an extra component due to continuum coupling effects |
title_full_unstemmed |
The X(3872) as a charmonium state plus an extra component due to continuum coupling effects |
title_sort |
x(3872) as a charmonium state plus an extra component due to continuum coupling effects |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2014-05-01 |
description |
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.
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url |
http://dx.doi.org/10.1051/epjconf/20147200008 |
work_keys_str_mv |
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1721241318047350784 |