Doubly heavy spin--1/2 baryon spectrum in QCD
arXiv:1205.2873 · doi:10.1016/j.nuclphysa.2012.09.009
Abstract
We calculate the mass and residue of the heavy spin--1/2 baryons containing two heavy b or c quarks in the framework of QCD sum rules. We use the most general form of the interpolating current in its symmetric and anti-symmetric forms with respect to the exchange of heavy quarks, to calculate the two-point correlation functions describing the baryons under consideration. A comparison of the obtained results with existing predictions from various approaches is also made.
17 Pages, 2 Figures and 2 Tables