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.

arXiv commentRevtex 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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