On the definition of velocity in theories with two observer-independent scales

Abstract

We argue that a consistent definition of the velocity of a particle in generalizations of special relativity with two observer-independent scales should be independent from the mass of the particle. This request rules out the definition $v_i=\partial p_0/\partial p_i$, but allows for other definitions proposed in the literature.

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References in corpus (1)

• Particle velocity in noncommutative space-time

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