More about the Mass of the New Charmonium States


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Aliev T., ÖZŞAHİN H., SAVCI M.

ADVANCES IN HIGH ENERGY PHYSICS, vol.2015, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2015
  • Publication Date: 2015
  • Doi Number: 10.1155/2015/728098
  • Journal Name: ADVANCES IN HIGH ENERGY PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Middle East Technical University Affiliated: Yes

Abstract

If X(3872) is described by the picture as a mixture of the charmonium and molecular D*D states; Y(3940) as a mixture of the chi(c0) and D* D* states; and Y(4260) as a mixture of the tetraquark and charmonium states, their orthogonal combinations should also exist. We estimate the mass and residues of the states within the QCD sum rules method. We find that the mass splitting among X, Y and their orthogonal states is at most 200 MeV. Experimental search of these new states can play critical role for establishing the nature of the new charmonium states.