Probing the Scalar Sector in $e^{+}{e}^{-}\to f\bar{f}H$

Abstract

We study possible deviations from the Standard Model in the reaction $e^{+}{e}^{-}\to Z\varphi$, where $\varphi$ denotes a spinless neutral boson. We show how the $Z$ decay angular correlation can be used to extract detailed information on the $\varphi$ couplings, such as the parity of $\varphi$, radiatively induced form factor effects and possible CP violation in the scalar sector. Consequences of gauge invariant dimension six operators are discussed as an example.

Revtex file (can run version 2 or 3), 20 pages. 7 figures available by fax or conventional mail. MAD/PH/734, KEK-TH-360

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• Using Back-Scattered Laser Beams to Detect CP Violation in the Neutral Higgs Sector
• Why a Scalar Explanation of the L3 Events is Implausible

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