Triply heavy baryons and heavy quark spin symmetry
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# Triply heavy baryons and heavy quark spin symmetry

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 Flynn, Jonathan M.; Hernández Gajate, Eliecer; Nieves Pamplona, Juan Miguel This document is a artículoDate2012 Este documento está disponible también en : http://hdl.handle.net/10550/39441 We study the semileptonic $b\to c$ decays of the lowest-lying triply-heavy baryons made from $b$ and $c$ quarks in the limit $m_b, m_c \gg \Lambda_\mathrm{QCD}$ and close to the zero recoil point. The separate heavy quark spin symmetries strongly constrain the matrix elements, leading to single form factors for $ccb\to ccc$, $bbc\to ccb$, and $bbb\to bbc$ baryon decays. We also study the effects on these systems of using a $Y$-shaped confinement potential, as suggested by lattice QCD results for the interaction between three static quarks. Flynn, Jonathan M. Hernández Gajate, Eliecer Nieves Pamplona, Juan Miguel 2012 Triply heavy baryons and heavy quark spin symmetry Physical Review D 85 1 014012 http://dx.doi.org/10.1103/PhysRevD.85.014012