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Pauli-Lubanski, supertwistors, and the superspinning particle
(Springer NatureJournal of High Energy Physics, 2017-06-28)
We present a novel construction of the super-Pauli-Lubanski pseudo-vector for 4D supersymmetry and show how it arises naturally from the spin-shell constraints in the supertwistor formulation of superparticle dynamics. We ...
Tachyons in the Galilean limit
(SpringerJournal of High Energy Physics, 2017-04-20)
The Souriau massless Galilean particle of “colour” k and spin s is shown to be the Galilean limit of the Souriau tachyon of mass m = ik and spin s. We compare and contrast this result with the Galilean limit of the Nambu-Goto ...