7-9 April 2014
Royal Holloway, University of London
Europe/London timezone
Institute of Physics 2014 Joint High Energy Particle Physics and Astro Particle Physics Groups Annual Meeting

Search for the Higgs Boson $b\bar{b}$ decay with the ATLAS detector

8 Apr 2014, 17:15
Room C (Windsor Building)

Room C

Windsor Building

contributed talk The Energy Frontier Programme Parallel 2C


Ines Ochoa (University of London (GB))


One of the main results of the Large Hadron Collider Run I was the discovery of the Higgs boson by ATLAS and CMS experiments. The boson has been discovered with a mass of around 125 GeV and all measurements performed so far are compatible with the Standard Model predictions. However, clear evidence of the boson decaying to a pair of $b$-quarks has not been observed yet, despite it being the dominant decay mode predicted by theory, making this a crucial measurement to establish the nature of the boson. The ATLAS search for the $b\bar{b}$ decay with the full Run I dataset is presented, considering the Higgs boson production in association with a vector boson ($W$, $Z$). The analysis is validated with a measurement of $WZ$ and $ZZ$ production, with $Z\rightarrow b\bar{b}$, which is found to be compatible with the Standard Model expectation.

Primary author

Ines Ochoa (University of London (GB))

Presentation Materials