6533b837fe1ef96bd12a3455
RESEARCH PRODUCT
Triply heavy baryons and heavy quark spin symmetry
Juan NievesE. HernándezJonathan M. Flynnsubject
QuarkNuclear and High Energy PhysicsParticle physicsNuclear TheoryHigh Energy Physics::LatticeLattice field theoryFOS: Physical sciencesLambda01 natural sciencesNuclear physicsNuclear Theory (nucl-th)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsNuclear ExperimentSpin-½PhysicsQuantum chromodynamics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyForm factor (quantum field theory)FísicaLattice QCDBaryonHigh Energy Physics - PhenomenologyHigh Energy Physics::Experimentdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-10-13 |