Testing kappa-Poincare' with neutral kaons

Details Testing kappa-Poincare' with neutral kaons Testing kappa-Poincare' with neutral kaons

2000-01-28

arxiv.org/abs/hep-ph/0001305v1

Mod.Phys.Lett. A15 (2000) 2119-2128

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LaTex

Scientific paper

10.1142/S0217732300002474

In recent work on experimental tests of quantum-gravity-motivated phenomenological models, a significant role has been played by the so-called ``$\kappa$'' deformations of Poincar\'e symmetries. Sensitivity to values of the relevant deformation length $\lambda$ as small as $5 \cdot 10^{-33}m$ has been achieved in recent analyses comparing the structure of $\kappa$-Poincar\'e symmetries with data on the gamma rays we detect from distant astrophysical sources. We investigate violations of CPT symmetry which may be associated with $\kappa$-Poincar\'e in the physics of the neutral-kaon system. A simple estimate indicates that experiments on the neutral kaons may actually be more $\lambda$-sensitive than corresponding astrophysical experiments, and may already allow to probe values of $\lambda$ of order the Planck length.

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