Can the X(4350) narrow structure be a 1^-+ exotic state?

2010/01/18 by Raphael M. Albuquerque, Jorgivan M. Dias, Marina Nielsen · 1 citation
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1016/j.physletb.2010.05.024

published as Phys.Lett.B690:141-144,2010 · 7 pages, 4 figures

arxiv created 2010/01/18 · arxiv updated 2014/11/20

Abstract

Using the QCD sum rules we test if the new narrow structure, the X(4350) recently observed by the Belle Collaboration, can be described as a J^PC=1^-+ exotic D_s^*D_s0^* molecular state. We consider the contributions of condensates up to dimension eight, we work at leading order in α_s and we keep terms which are linear in the strange quark mass m_s. The mass obtained for such state is m_D_s^*D_s0^*=(5.05± 0.19) GeV. We also consider a molecular 1^-+, D^*D₀^* current and we obtain m_D^*D₀^*=(4.92± 0.08) GeV. We conclude that it is not possible to describe the X(4350) structure as a 1^-+ D_s^*D_s0^* molecular state.

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• QCD sum rules study of X(4350)

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