Search results for "Heavy quark spin symmetry"

showing 2 items of 2 documents

Semileptonic bc to cc and bb to bc baryon decays and heavy quark spin symmetry

2009

5th International Conference on Quarks and Nuclear Physics (QNP09). Inst High Energy Phys Chinese Acad Sci, Beijing, PEOPLES R CHINA, SEP 21-25, 2009

QuarkNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::LatticeNuclear TheoryFOS: Physical sciencesConstituent quark modelsAstrophysics::Cosmology and Extragalactic AstrophysicsLambdaOmegaHigh Energy Physics - Phenomenology (hep-ph)Semileptonic decaysNuclear ExperimentInstrumentationSpin-½Quantum chromodynamicsPhysicsQuark modelHigh Energy Physics::PhenomenologyForm factor (quantum field theory)FísicaAstronomy and AstrophysicsBaryonHigh Energy Physics - PhenomenologyHigh Energy Physics::ExperimentHeavy quark spin symmetry
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A study of beauty baryons with extended local hidden gauge approach

2016

Abstract In present work we investigate the interaction of B ‾ N , B ‾ Δ , B ‾ ⁎ N and B ‾ ⁎ Δ states, together with their coupled channels. Taking into account the heavy quark spin symmetry for pion exchange and the results of the Weinberg Tomozawa term in the extended local hidden gauge approach, we search for states dynamically generated from the interaction, and find two states with small width, which we associate to the Λ b ( 5912 ) and Λ b ( 5920 ) states. In addition to these two Λ b states, we find three more states with I = 0 and eight more states in I = 1 , some of which are degenerate in different spin J .

PhysicsQuarkNuclear and High Energy PhysicsParticle physicsbox diagram010308 nuclear & particles physicsDegenerate energy levelsGauge (firearms)01 natural sciencesBaryonPionheavy quark spin symmetrycoupled channels0103 physical sciencesSpin symmetry010306 general physicsSpin-½Nuclear and Particle Physics Proceedings
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