Testing $CP$ in the Bjorken process

Abstract

In a more general electroweak theory, there could be Higgs particles that are odd under $CP$, and also Higgs-like particles which are not eigenstates of $CP$. We discuss distributions which for the Bjorken process are sensitive to the $CP$ parity. Correlations among momenta of the initial electron and final-state fermions yield this kind of information. We discuss also observables which may demonstrate presence of $CP$ violation and identify a phase shift $\delta$ which is a measure of the strength of $CP$ violation in the Higgs-vector-vector coupling, and which can be measured directly in the decay distribution. We present Monte Carlo data on the expected efficiency, and conclude that it is relatively easy to determine whether the produced particle is even or odd under $CP$. However, observation of any $CP$ violation would require a very large amount of data.

15 pages, LaTex, plus 5 uuencoded figures attached Full ps file available at ftp://vsfys1.fi.uib.no/anonymous/pub/BERGEN1995-02.ps

References in corpus (10)

• Higgs Bosons: Intermediate Mass Range at e+e- Colliders
• Prospects of Measuring the Parity of Higgs Particles
• Using Decay Angle Correlations to Detect CP Violation in the Neutral Higgs Sector
• Probing the Scalar Sector in $e^{+}{e}^{-}\to f\bar{f}H$
• CP--odd Correlation in the Decay of Neutral Higgs Boson into $ZZ$, $W^{+}{W}^{-}$, or $t\bar{t}$
• Angular and energy correlations in Higgs decay
• Signals of $CP$ violation in Higgs decay
• Energy Spectra and Energy Correlations in the Decay $H\to ZZ\to {\mu }^{+}{\mu }^{-}{\mu }^{+}{\mu }^{-}$
• Energy correlation and asymmetry of secondary leptons in $H\to t\bar{t}$ and $H\to W^{+}{W}^{-}$
• Could Large CP Violation Be Detected at Colliders?

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