Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2003-12-19
Phys.Rev. D69 (2004) 105016
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
13 pages,v3 added comments regarding the assumption of composite particles,minor wording changes, version to be published
Scientific paper
10.1103/PhysRevD.69.105016
Two theories of special relativity with an additional invariant scale, "doubly special relativity" (DSR), are tested with calculations of particle process kinematics. Using the Judes-Visser modified conservation laws, thresholds are studied in both theories. In contrast to some linear approximations, which allow for particle processes forbidden in special relativity, both the Amelino-Camelia and Maguejo-Smolin frameworks allow no additional processes. To first order, the Amelino-Camelia framework thresholds are lowered and the Maguejo-Smolin framework thresholds may be raised or lowered.
Heyman Dan
Hinteleitner Franz
Major Seth
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