Semileptonic bc to cc and bb to bc Baryon Decays and Heavy Quark Spin Symmetry

Details Semileptonic bc to cc and bb to bc Baryon Decays and Heavy Quark Spin Symmetry Semileptonic bc to cc and bb to bc Baryon Decays and Heavy Quark Spin Symmetry

2009-12-11

arxiv.org/abs/0912.2226v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 latex pages. Talk given at The 5-th International Conference on Quarks and Nuclear Physics (QNP09), Beijing, September 2009

Scientific paper

We study the semileptonic decays of the lowest-lying $bc$ baryons to the lowest-lying $cc$ baryons ($\Xi_{bc}^{(\prime*)}\to \Xi_{cc}^{(*)}$ and $\Omega_{bc}^{(\prime*)}\to \Omega_{cc}^{(*)}$), in the limit $m_b, m_c \gg \Lambda_\mathrm{QCD}$ and close to the zero recoil point. The separate heavy quark spin symmetries make it possible to describe all these decays using a single form factor. We also show how these constraints can be used to test the validity of different quark model calculations. $bb$ to $bc$ baryon decays are also discussed.

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