Spin supplementary condition in quantum field theory: covariant SSC and physical state projection
نویسندگان
چکیده
A bstract The spin supplementary conditions are constraints on degrees of freedom in classical relativity which restricts physical to rotations. It is argued that the equivalent quantum field theory projection polarisation tensors, remove timelike/longitudinal polarisations from spectrum. claim supported by three examples massive spinning particles coupled electromagnetism: Dirac and Proca fields theory,
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2023
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep07(2023)042