Xiang Liu, Hua-Xing Chen, Yan-Rui Liu, Atsushi Hosaka, Shi-Lin Zhu
Published 2007-09-30, updated 2007-11-08Version 2
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.
Comments: 8 pages, 5 figures, 3 tables. More discussions and references added
Journal: Phys.Rev.D77:014031,2008
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