8-12 July 2019
Polokwane
Africa/Johannesburg timezone
Deadline for papers for the conference proceedings is 15 August 2019

Searches for Dark Matter via mono-higgs with the ATLAS detector.

9 Jul 2019, 12:40
20m
Protea The Ranch Hotel (Polokwane)

Protea The Ranch Hotel

Polokwane

Oral Presentation Track B - Nuclear, Particle and Radiation Physics Nuclear, Particle and Radiation Physics

Speaker

Mr Karabo Mdluli (University of the Witwatersrand)

Description

A search for the dark matter in association with the Standard Model like Higgs boson was performed using up to 37 fb^(-1) pp collision data collected by the ATLAS detector at the Large Hadron Collider during 2015–2016 are summarised. In high energy physics, deep learning is used to increase the sensitivity of physics analyses and provides a handle to evaluate the performance and potential for improvement of traditional physics algorithms. We use Multivariate Analysis methods to suppress the fake missing transverse energy, using the Boosted Decision Tree we are able to enhance the regression performance of typically weak Multivariate Analysis methods for the dark matter search. In the case of both boosted decision trees the use of machine learning techniques is found to improve the background rejection and the signal efficiency. Linear correlations between the resulting classifiers and the substructure variables are also presented.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

MSc

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Primary author

Mr Karabo Mdluli (University of the Witwatersrand)

Co-authors

Prof. Bruce Mellado (University of the Witwatersrand) Mr Kehinde Tomiwa (University of the Witwatersrand) Dr XIFENG RUAN (WITS)

Presentation Materials

There are no materials yet.