Abstract
This chapter introduces general frame-independent relations between the observable anisotropy parameters. Some of these relations reflect the geometrical properties of the distribution, including inequalities that delimit the allowed phase space of the anisotropy parameters, and the representation of the distribution in a “canonical” form. The most interesting relation defines a rotation-invariant parameter expressing the intrinsic nature of the polarization, independently of the reference frame.
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Faccioli, P., Lourenço, C. (2023). A Frame-Independent Study of the Angular Distribution. In: Particle Polarization in High Energy Physics. Lecture Notes in Physics, vol 1002. Springer, Cham. https://doi.org/10.1007/978-3-031-08876-6_3
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