2000/07/31 by Richard Shurtleff, Shurtleff, Richard
Computer Science · Earth and Planetary Sciences · Physics and Astronomy · #Distributed and Parallel Computing Systems #FOS: Physical sciences #Geophysics and Gravity Measurements #High Energy Physics - Theory (hep-th) #Scientific Research and Discoveries #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/0007245
8 pages, no figures, LaTex
arxiv created 2000/07/31 · openalex publication_date 2000/07/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We continue to derive spacetime quantities and spin 1/2 propagators from rotations. Rotation-invariant projection operators are found for each element of a four element basis, i.e. a basis for four component quantities with specific transformation rules under rotations. With these four projection operators, we make two spacetime invariant projection operators, i.e. once space, time, energy, and momentum are identified. The spacetime invariant operators are propagators for free neutrinos. Except for the substitute basis, the process is the same as the one that gave electron propagators in Part I. PACS number(s): 11.30.-j, 11.30.Cp, and 03.65.Fd