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Mixing angle of doubly heavy baryons in QCD
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Date
2012-08-29
Author
Alıyev, Tahmasıb
AZİZİ, KAZEM
Savcı, Mustafa
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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.
Subject Keywords
Decay
URI
https://hdl.handle.net/11511/39349
Journal
PHYSICS LETTERS B
DOI
https://doi.org/10.1016/j.physletb.2012.07.033
Collections
Department of Physics, Article