| Issue |
EPJ Web of Conferences
Volume 3, 2010
19th International IUPAP Conference on Few-Body Problems in Physics
|
|
|---|---|---|
| Article Number | 03026 | |
| Number of page(s) | 3 | |
| Section | Few-Hadron Systems | |
| DOI | https://doi.org/10.1051/epjconf/20100303026 | |
| Published online | 12 April 2010 | |
https://doi.org/10.1051/epjconf/20100303026
Structure of the X(3872) and its Isospin Symmetry Breaking
1
Showa Pharmaceutical University, Machida, Tokyo
194-8543,
Japan
2
Japan College of Social Work, Kiyose, Tokyo
204-8555,
Japan
a e-mail: takizawa@ac.shoyaku.ac.jp
In order to understand the structure of the X(3872), we have studied the effects of the 
charmonium core state coupling to
the D0 
and D+ D−* molecule states. We determine the coupling
strength so as to reproduce the observed mass of the the X(3872). The isospin symmetry breaking is introduced by the mass differences of the neutral and charged 
mesons. The obtained structure of the X(3872) is about 15% of charmoniumu, 72% of the isoscalar D molecule and
13% of the isovector D molecule which explains
observed properties of the X(3872) well.
© Owned by the authors, published by EDP Sciences, 2010
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