arXiv:hep-ph/9407301·v1·High Energy Physics — Phenomenology

CP Violating Effects in $e^{+} e^{-} \to Z H$ and Their Optimization

J.P. Ma & B.H.J. McKellar

Abstract

We consider the possibilities of testing CP conservation in the process $e^{+} e^{-} \to Z H$ . The easiest is to measure the forward-backward asymmetry of the $Z$ boson, a nonzero value of which signals CP violation. The effects of CP violation are predicted in the two Higgs doublet model. We show here that a choise of optimal observables can improve the possibility of observing CP violation. Although the number of events is not large, useful information about CP violating parameters can be extracted.

Comments: 10pages plain-Tex, 3 figures are not included but can be sent on request per fax

CP Violating Effects in e+e−→ZH and Their Optimization

Abstract

CP Violating Effects in $e^{+} e^{-} \to Z H$ and Their Optimization