School of Physics and Astronomy

Observation of the Higgs boson decaying to bottom quarks at CMS

1 November 2018

Time: 3:00 - 4:00pm
Speaker: Christopher Palmer,
Venue: G.O. Jones, room 410

The Higgs boson decay to a bottom quark-antiquark pair has been sought
for decades by the high energy community (i.e. at LEP and then
Tevatron).  LHC experiments built analyses based on the experience of
Tevatron experiments' analysis techniques.  With the observation of
the Higgs boson at LHC during Run 1, the search for this decay channel
became sharply focused.  As the bottom quark pair channel is the most
probable decay of the Higgs boson (58%), its observation is both
important in terms of quantifying the Higgs boson and it represents an
important milestone in high energy physics.  The results presented use
datasets from the LHC Run 1 and Run 2 (2016+2017) from CMS.  The Run 2
13 TeV dataset corresponds to an integrated luminosity of ~80 fb^-1.
The analysis strategy, the background estimation techniques, and
significant analysis improvements from the 2017 data analysis in CMS
are shown.  An outlook on the upcoming analysis of the full Run 2
dataset will be discussed. Slides: https://indico.ph.qmul.ac.uk/indico/conferenceDisplay.py?confId=367