SAIP2015

A di-Higgs Search in the γγbb Decay Channel Using the ATLAS Detector

3 Jul 2015, 10:00

20m

Boardwalk Convention Centre, PE

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

Speaker

Mr Robert Reed (University of Witwatersrand)

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

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

PhD

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

Yes

Main supervisor (name and email)<br>and his / her institution

Prof. Bruce Mellado
Bruce.Mellado@cern.ch
University of the Witwatersrand

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

The Higgs boson was discovered on July 4th 2012. The data taken in the 2012 run was compared to Monte Carlo generated using the Standard Model and a weak limit was found for the invariant mass of the four objects, at 300 GeV, in the Higgs to γγbb channel. The confidence level at 300 GeV was calculated at approximately 3 sigma which was reduced to 2.1 sigma after the look elsewhere affect was applied. This limit is of interest as it can be tested relatively soon in the data taking period making the γγbb channel an early analysis for 2015. The structure and strategy of the analysis will be discussed and optimisations shown.

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes