It’s possible that the 125 GeV Higgs boson discovered by the ATLAS and CMS Experiments is only one of several neutrally-charged Higgs bosons predicted by theories beyond the Standard Model of particle physics. Many of these theories predict the existence of a more massive Higgs boson, H, that is able to decay into two lighter 125 GeV Higgs bosons. The student will develop analysis strategies to search for the production of two neutral 125 GeV Higgs bosons (H to hh), and then carry out these search strategies on the ATLAS proton-proton collision data. Searches will focus on a final state where one of the Higgs bosons decays into two tau leptons, and the second Higgs boson decays to a pair of bottom quarks. The student will use this same final state to explore the Higgs boson self-coupling (h to hh), one of the last unobserved predictions of the Standard Model . The student will participate in developing algorithms for tau lepton identification, and will also be expected to play a role in the production of silicon microstrip detector modules for the ATLAS Phase-II tracker Upgrade (ITk).
Science Graduate School: As a PhD student in one of the science departments at the University of Sheffield, you’ll be part of the Science Graduate School – a community of postgraduate researchers working across biology, chemistry, physics, mathematics and psychology. You’ll get access to training opportunities designed to support your career development by helping you gain professional skills that are essential in all areas of science. You’ll be able to learn how to recognise good research and research behaviour, improve your communication abilities and experience technologies that are used in academia, industry and many related careers. Visit http://www.sheffield.ac.uk/sgs to learn more.
If you submit your application after the 31 March 2019, you will be considered for any remaining funding, but please note all of our funding may be allocated in the first round.