Generalized Melosh Transformations for Baryons

نویسندگان

  • Xuepeng Sun
  • Hans J. Weber
چکیده

Melosh rotations are defined for antiquarks that provide unitary transformations from uto v-spinor basis states. Methods for constructing a complete set of relativistic three-quark states are detailed for the nucleon, N∗(1520) and N∗(1535). States containing virtual antiquarks are constructed and a physical interpretation of v-spinor basis states in QCD is provided in terms of transition amplitudes from quark to quark-gluon or quark-Goldstone boson Fock states of chiral dynamics generated by flux tube breaking expected in QCD at intermediate distances.

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تاریخ انتشار 2001