Speaker
Ms
Lily Asquith
(University College London)
Description
The search of a Higgs Boson around the lower mass region (the mass indicated by LEP precision measurements) is particularly challenging at the LHC due to the vast QCD background. For M_Higgs < 130 GeV, decay is predominantly to a b anti-b quark pair, which makes it difficult to reconstruct because the total cross section for b anti-b production at the LHC will be ~10^9 times higher than the cross section for H->(b anti-b).
We therefore require the Higgs to be produced in association with a top anti-top pair, in order that a high pt lepton from the decay of one of the top quarks can be used as a trigger for Higgs candidate events.
Seperating the Higgs signal from the myriad of background events is further achieved by the development and implementation of a cut-based analysis, optimizing the event reconstruction using information from b-tagging algorithms and implementing a channel-specific jet energy calibration.
| Talk, Poster, or Talk & Poster | Talk |
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Author
Ms
Lily Asquith
(University College London)
