Fixed-axis polarization states: covariance and comparisons

Abstract

Addressing the recent criticisms of Kvinikhidze and Miller, we prove that the spectator wave functions and currents based on ``fixed-axis'' polarization states (previously introduced by us) are Lorentz covariant, and find an explicit connection between them and conventional direction-dependent polarization states. The discussion shows explicitly how it is possible to construct pure $S$-wave models of the nucleon.

Changed title and introductory material to match accepted paper

References in corpus (3)

• A pure S-wave covariant model for the nucleon
• The shape of the nucleon
• Subtleties of Lorentz Invariance in Relativistic Constituent Quark Models of the Nucleon and the Spin-Dependent Quark Density

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