On the definition of velocity in doubly special relativity theories
Piotr Kosinski, Pawel Maslanka

TL;DR
This paper examines how particle velocity is defined within doubly special relativity theories, providing a general formula linking velocity to four-momentum.
Contribution
It introduces a general formula connecting particle velocity and four-momentum in doubly special relativity, clarifying the velocity concept in these theories.
Findings
Derived a general velocity-four-momentum relation
Clarified the velocity definition in doubly special relativity
Provided insights into particle kinematics in modified relativity
Abstract
We discuss the definition of particle velocity in doubly relativity theories. The general formula relating velocity and four-momentum of particle is given.
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