## Particle with torsion on 3d null-curves

• We consider a (2 + 1)-dimensional mechanical system with the Lagrangian linear in the torsion of a light-like curve. We give Hamiltonian formulation of this system and show that its mass and spin spectra are defined by one-dimensional nonrelativistic mechanics with a cubic potential. Consequently, this system possesses the properties typical of resonance-like particles.

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Author: A. Nersessian, R. Manvelyan, H.J.W. Müller-Kirsten urn:nbn:de:hbz:386-kluedo-10956 Preprint English 1999 1999 Technische Universität Kaiserslautern 2001/02/09 Fachbereich Physik 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011

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