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

Using a Regressional Analysis to Improve the b-jet energy correction in $WH\rightarrow\ell\nu bb$ Searches at ATLAS

8 Apr 2014, 17:45
Room C (Windsor Building)

Room C

Windsor Building

contributed talk The Energy Frontier Programme Parallel 2C


Thomas Olivier Ravenscroft (University of Glasgow (GB))


Presented is a method to improve the b-jet energy resolution with the task of increasing the signal sensitivity in searches decaying to a b, anti-b quark pair in the final state. The machinery has been tested using Monte Carlo simulated samples in the process $WH \rightarrow l\nu bb$. The method trains a function through regression applying a correction factor to bring the reconstructed jet energy closer to that of generator level energy. This narrows the b anti-b jet mass peak of the signal, and therefore increases the signal to background separation

Primary author

Thomas Olivier Ravenscroft (University of Glasgow (GB))

Presentation Materials