X(3872) as a molecular DD* state in a potential model

Ian Woo Lee, Amand Faessler, Thomas Gutsche, Valery E. Lyubovitskij

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

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 JPC=1++ already exists for a reasonable value of the meson-exchange regularization parameter of Λ∼1.2GeV. We also explore the possibility of hadronic BB* bound states and show that binding can be achieved in the isoscalar limit for JPC=1++ or 1+-.

Original languageEnglish
Article number094005
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume80
Issue number9
DOIs
Publication statusPublished - 9 Nov 2009
Externally publishedYes

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mesons
vector mesons
S waves
broken symmetry
perturbation theory
scalars
orbitals
configurations

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

X(3872) as a molecular DD* state in a potential model. / Lee, Ian Woo; Faessler, Amand; Gutsche, Thomas; Lyubovitskij, Valery E.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 80, No. 9, 094005, 09.11.2009.

Research output: Contribution to journalArticle

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