Spin-orbit splittings in heavy-light mesons and Dirac equation

Details Spin-orbit splittings in heavy-light mesons and Dirac equation Spin-orbit splittings in heavy-light mesons and Dirac equation

2011-10-07

arxiv.org/abs/1110.1451v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 fig

Scientific paper

The spin-orbit splitting in heavy-light mesons is seen to be suppressed experimentally. It is shown that it can be understood qualitatively in the frame work of Dirac theory. An alternative derivation of a relativistic dynamical symmetry for the Dirac Hamiltonian, which suppresses spin orbit splitting, is also given. However it is shown that such a symmetry is not needed since the spin-orbit splitting in Dirac theory with Coulomb like potential (as is the case for the one gluon exchange potential in pQCD) is small anyway.

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