D(s)D* Molecule as an Axial Meson

We use QCD sum rules to study the possible existence of a D(s)(D) over bar* - D(s)*(D) over bar molecule with the quantum number J(PC) = 1(++). We consider the contributions of condensates up to dimension eight and work at leading order in alpha(s). We obtain m(DsD*) = (3.96 +/- 0.10) GeVaround 100 MeV above the mass of the meson X(3872). The proposed state is a natural generalized state to the strangeness sector of the X(3872), which was also found to be consistent with a multiquark state from a previous QCD sum rule analysis.

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

FAPESP

CNPq-Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Korea Research Foundation

Korea Research Foundation[KRF-2006-C00011]

German BMBF[06BO108I]

German BMBF