Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-10-06
Phys.Rev.D80:094005,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 7 figures
Scientific paper
10.1103/PhysRevD.80.094005
We discuss the possibility that the X(3872) can be a hadronic DD* bound state in the framework of a potential model. The potential is generated by the exchange of pseudoscalar, scalar and vector mesons resulting from the Lagrangian of heavy hadron chiral perturbation theory. The hadronic bound state configuration contains charged and neutral DD* components, while orbital S- and D-waves are included. Isospin symmetry breaking effects are fully taken into account. We show that binding in the DD* system with J(PC)=1(++) already exists for a reasonable value of the meson-exchange regularization parameter of Lambda around 1.2 GeV. We also explore the possibility of hadronic BB* bound states and show that binding can be achieved in the isoscalar limit for J(PC)=1(++) or 1(+-).
Faessler Amand
Gutsche Thomas
Lee Ian Woo
Lyubovitskij Valery E.
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