Astrophysical Limit on the Deformation of the Poincare Group

Details Astrophysical Limit on the Deformation of the Poincare Group Astrophysical Limit on the Deformation of the Poincare Group

1993-06-03

arxiv.org/abs/hep-ph/9306218v1

J.Phys. G20 (1994) 1989-1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

SKD@JHUP.PHA.JHU.EDU 7 pages; 1 figure available upon request. Report # JHU-TIPAC920027/rev hep-ph/yymmnnn --- Latex

Scientific paper

10.1088/0954-3899/20/12/014

The deformed Poincar\'{e} group contains a characteristic mass, $\kappa$. At energies exceeding $\kappa$, deviations from the special theory of relativity become significant. However, small deviations from ordinary relativistic kinematics are observable even at energies substantially lower than $\kappa$. The observation of distant events producing ultra high energy (UHE) particles leads to a lower limit on $\kappa$. From an analysis of the UHE data on the burst in the binary system HER X1 in 1986, we deduce $\kappa > 1.3 10^{12}$~GeV.

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