CPT Violation from Planck Scale Physics

TL;DR

This paper explores the potential for CPT violation originating from Planck scale physics in the neutral kaon system, proposing new parameters and emphasizing the importance of experimental searches.

Contribution

It introduces a novel set of CPT violating parameters linked to Planck scale physics, distinct from traditional Hamiltonian parameters, and discusses their phenomenological implications.

Findings

Existing bounds are close to naive dimensional analysis estimates.

New CPT violating parameters could be detectable in near-future experiments.

The departure from S-matrix evolution suggests alternative CPT violation mechanisms.

Abstract

I address the phenomenology of CPT violation in the neutral kaon system under the assumption that it originates from Planck scale physics. This assumption opens the door to a new set of CPT violating parameters whose phenomenology is distinct from the $\Delta$ parameter usually considered in the Hamiltonian. The origin of these parameters reflects a possible departure from a $S$-matrix evolution. Existing bounds on CPT violation are near the expected range based on naive dimensional analysis. This provides a strong incentive to pursue the quest of CPT violation in near-future kaon experiments. (Talk given at the Workshop on K Physics, Orsay, France, May 30 - June 4, 1996.)