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arXiv · 1408.3703

Spectroscopy of heavy baryons with breaking of heavy-quark symmetry

S. Yasui
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Abstract

Transition decay widths by one-pion emissions for excited heavy-baryons with a single heavy (charm and bottom) quark are investigated by following the heavy-quark symmetry and its breaking effects at ${\cal O}(1/M)$ for a heavy-baryon mass $M$. Based on the heavy-baryon effective theory, interaction Lagrangian for the heavy baryons with axial-vector current induced by a pion is constructed. It is presented that the transition decay widths up to ${\cal O}(1/M)$ in several channels are constrained. The results will be useful in experimental study of excited heavy-baryons.

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S. Yasui. 2014-08-16. Spectroscopy of heavy baryons with breaking of heavy-quark symmetry. https://doi.org/10.1103/physrevd.91.014031

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