Abstract
Orthonormal spin–flavor wave functions of Lorentz covariant quark models of the Bakamjian– Thomas type are constructed for nucleon resonances. Three different bases are presented. The manifestly Lorentz covariant Dirac–Melosh basis is related to the Pauli–Melosh basis and the symmetrized Bargmann–Wigner basis that are manifestly orthogonal.
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