6533b857fe1ef96bd12b3a28
RESEARCH PRODUCT
Hyperfine mixing in electromagnetic decay of doubly heavy bc baryons
C. AlbertusE. HernándezJuan Nievessubject
QuarkNuclear and High Energy PhysicsParticle physicsHyperfine mixingNuclear TheoryFOS: Physical sciences01 natural sciencesNuclear Theory (nucl-th)Nuclear physicsHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesHeavy quark effective theoryB meson010306 general physicsNuclear ExperimentHyperfine structureNuclear theoryMixing (physics)Physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyFísicaDouble heavy bc baryonsBaryonHigh Energy Physics - PhenomenologyHigh Energy Physics::ExperimentGround statedescription
We investigate the role of hyperfine mixing in the electromagnetic decay of ground state doubly heavy bc baryons. As in the case of a previous calculation on b -> c semileptonic decays of doubly heavy baryons, we find large corrections to the electromagnetic decay widths due to this mixing. Contrary to the weak case just mentioned, we find here that one cannot use electromagnetic width relations obtained in the infinite heavy quark mass limit to experimentally extract information on the admixtures in a model independent way.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-19 | Physics Letters B |