The Charmonium-molecule hybrid structure of the X(3872)

Journal Article · Fri Oct 21 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3647405· OSTI ID:21611931

Takizawa, Makoto ^[1]; Takeuchi, Sachiko ^[2]; Shimizu, Kiyotaka ^[3]

---

1. Showa Pharmaceutical University, Machida, Tokyo 194-8543 (Japan)
2. Japan College of Social Work, Kiyose, Tokyo 204-8555 (Japan)
3. Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554 (Japan)

We propose that the X(3872) has the charmonium and the DD*-bar hadronic molecule hybrid structure. We study the structure of the X(3872) using the schematic model with the separable interaction. The strengths of the couplings between the charmonium state and the hadronic molecule states are determined 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 D mesons. The obtained structure of the X(3872) is about 9% of cc-bar charmonium, 75% of the isoscalar DD*-bar molecule and 16percent; of the isovector DD*-bar molecule which explains observed properties of the X(3872) well.

• OSTI ID: 21611931
• Journal Information: AIP Conference Proceedings, Vol. 1388, Issue 1; Conference: BARYONS' 10: International conference on the structure of baryons, Osaka (Japan), 7-11 Dec 2010; Other Information: DOI: 10.1063/1.3647405; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
CHARMONIUM
D MESONS
D*-2010 MESONS
ISOSPIN
ISOVECTORS
MASS DIFFERENCE
NEUTRAL CURRENTS
PARTICLE STRUCTURE
QUARK MODEL
REST MASS
SYMMETRY BREAKING
ALGEBRAIC CURRENTS
BOSONS
CHARM PARTICLES
CHARMED MESONS
COMPOSITE MODELS
CURRENTS
ELEMENTARY PARTICLES
HADRONS
MASS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
QUARKONIUM
TENSORS
VECTOR MESONS
VECTORS