Browsing Department of Materials Science and Metallurgy by Author "Mezincescu, L"
Now showing items 1-3 of 3
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Pauli-Lubanski, supertwistors, and the superspinning particle
Arvanitakis, AS; Mezincescu, L; Townsend, Paul Kingsley (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 ...
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Tachyons in the Galilean limit
Batlle, C; Gomis, J; Mezincescu, L; Townsend, Paul Kingsley (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 ...
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Worldline CPT and massless supermultiplets
Arvanitakis, Alexandros-Spyridon; Mezincescu, L; Townsend, Paul Kingsley (World Scientific PublishingInternational Journal of Modern Physics A, 2016-09-30)The action for a massless particle in 4D Minkowski space–time has a worldline-time reversing symmetry corresponding to CPT invariance of the quantum theory. The analogous symmetry of the $\mathscr{N}$-extended superparticle ...