2011/02/21 by Ajay Majethiya, Majethiya, Ajay, Kaushal Thakkar +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.1102.4160
arxiv created 2011/02/21 · arxiv updated 2011/02/22
Properties of single beauty baryons (Σb,Λb) are studied based on the quark-diquark structure. The confinement potential is assumed as two body colour coulomb plus power potential with exponent ν. We find a strong correlation between the choice of the heavy quark mass parameter (mb), strong coupling constant (αs) and the potential exponent (ν) for getting the experimental mass spilt of m_Σ*b- m_Σb=21.2±2.0 MeV. The resultant spectroscopic parameters are used for computing magnetic moments, the electromagnetic radiative decay, strong hadronic decay and semileptonic decay widths of Σb, Λb systems. Our predictions on the radiative decay width correspond to Σ*0b→Λbγ are in agreement with the QCD sum rule prediction. The present results on the semileptonic decay widths of Λb→ Λclνl (2.50-4.73) *1010 s-1 are in agreement with the experimental value of 3.59+1.234-0.936 *1010 s-1 reported by (PDG 2010).