December 2007, to be published in Physical Review D1


Bottom baryons
Xiang Liu, Hua-Xing Chen, Yan-Rui Liu, Atsushi Hosaka, and Shi-Lin Zhu

Recently CDF and D0 collaborations observed several bottom baryons. In this work we perform a systematic study of the masses of bottom baryons up to $1/m_Q$ in the framework of heavy quark effective field theory (HQET) using the QCD sum rule approach. The extracted chromo-magnetic splitting between the bottom baryon heavy doublet agrees well with the experimental data.

© 2008 The American Physical Society.