Mixing angle of doubly heavy baryons in QCD
Üst veriTüm öğe kaydını göster
KünyeALİEV, T.M., AZİZİ, K., SAVCI, M. (2012). Mixing angle of doubly heavy baryons in QCD. Physics Letters B, 715 (1-3), pp. 149-151. DIO: http://dx.doi.org/10.1016/j.physletb.2012.07.033.
We calculate the mixing angles between the spin-1/2, Xi(bc)-Xi'(bc) and Omega(bc)-Omega'(bc) states of doubly heavy baryons within the QCD sum rules method. It is found that the mixing angles are large and have the values phi(Xi bc) = 16 degrees +/- 5 degrees and phi(Omega bc) = 18 degrees +/- 6 degrees, respectively. The mixing angles are slightly smaller compared to the predictions of the non-relativistic quark model, phi(Xi bc) = 25.5 degrees and phi(Omega bc) = 25.9 degrees. (c) 2012 Elsevier B.V. All rights reserved.