Speaker
Description
We presents a full simulation study of the production of a scalar ($M_{S}$) using $e^+ e^- \rightarrow Z S$ at the future $e^+ e^-$ colliders. We consider the events in which a Scalar recoils against a $Z$ boson decaying into a pair of muons or electrons at $\sqrt{s} = 250$~GeV. We evaluate the statistical precisions of the Scalar mass $m_{S}$ measurement at the future $e^+e^-$ colliders in the $Z \rightarrow \mu^{+} \; \mu^{-} $ channel and provide the extension to additional $Z \rightarrow e^{+} \; e^{-} $ channel. For the whole mass range, $M_{S}= 90-200$~GeV, the observed limit on the cross section is weaker than expected. Furthermore, at $ \approx 95$~GeV the limit is weakest and a new scalar subsequently decays leptonically with a cross section $\approx 0.5$ pb indistinguishable over the Standard Model hypothesis. We use Deep Neural Network (DNN) as a machine learning technique to provide discrimination at $\approx 95$~GeV.
Level for award;(Hons, MSc, PhD, N/A)?
MSc
| Apply to be considered for a student ; award (Yes / No)? | Yes |
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