Analysis of the ${\frac{1}{2}}^{+}$ doubly heavy baryon states with QCD sum rules

Abstract

In this article, we study the ${\frac{1}{2}}^{+}$ doubly heavy baryon states ${\Omega }_{QQ}$ and ${\Xi }_{QQ}$ by subtracting the contributions from the corresponding ${\frac{1}{2}}^{-}$ doubly heavy baryon states with the QCD sum rules, and make reasonable predictions for their masses. Those doubly heavy baryon states maybe observed at the Tevatron, the LHCb and the PANDA.

Comments: 13 pages, 16 figures, revised version