Search for di-Higgs production in the hh-bbrr channel using data from the ATLAS experiment at the Large Hadron Collider

Lead Research Organisation: University of Liverpool
Department Name: Physics


The project is a search for a Beyond-the-Standard-Model (BSM) Higgs boson decaying to a pair of Standard Model (SM) Higgs bosons (known as resonant Higgs pair-production), where one SM Higgs decays to a pair of b-quarks and the other to a pair of r leptons.
The project will also involve searching for non-resonant Higgs pair-production, i.e. the production of a pair of Higgs bosons as predicted in the SM, with the same final state as described above.
The full Run-II ATLAS data will be analysed. If the cross-section for di-Higgs production is as predicted by the Standard Model, it is unlikely that this process will be observed. However, if the signal is enhanced by BSM physics, this may be observed.


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Studentship Projects

Project Reference Relationship Related To Start End Student Name
ST/N504142/1 01/10/2015 31/03/2021
1643513 Studentship ST/N504142/1 01/10/2015 31/03/2019 Emily Charlotte Graham
Description ATLAS Collaboration 
Organisation European Organization for Nuclear Research (CERN)
Department ATLAS Collaboration
Country Switzerland 
Sector Academic/University 
PI Contribution I have completed my ATLAS qualification task, which involved working on the calibration of the light-flavour jet mis-tag rate. An ATLAS internal note is underway describing this work. I also work on 'Searches for resonant and non-resonant Higgs boson pair-production in the bbtt decay channel' for which a paper is expected to be published by Summer 2018.
Collaborator Contribution In my research I make use of data collected from the ATLAS detector.
Impact N/A
Start Year 2015