Hadronic data analysis and the determination of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment


The muon anomalous magnetic moment g-2, where g is the gyromagnetic ratio of the muon, is one of the exceptional cases in particle physics at low energy where a significant discrepancy between measurement and Standard Model (SM) prediction has persisted for more than 20 years. This discrepancy, now reaching 4.2 sigma, could be compelling evidence of physics beyond the SM. In view of the new experimental efforts under way at Fermilab (USA) and J-PARC (Japan) to improve the g-2 accuracy, a confirmation of its SM prediction is now mandatory. Its hadronic contributions are under scrutiny, as they induce the main uncertainty of the SM prediction. The KLOE experiment at the phi-factory DAphNE in Frascati (near Rome) is the first to have employed Initial State Radiation to precisely determine the e+e- –> pi+pi-gamma cross section below 1 GeV, which is a crucial ingredient for the data-driven evaluation of the hadronic contributions to g-2. This PhD project is focused on the analysis of the full KLOE data sample and should improve, by up to a factor of 2, the current accuracy of the hadronic vacuum polarization. It will thus place a significant constraint on the SM prediction of g-2. The project also requires involvement in the development of Monte Carlo generators for this process. The successful candidate is expected to work on the data analysis and simulation software. They will be supervised by experienced senior colleagues and become part of the fast-growing research group on muon precision physics in Liverpool.

The advertised position is open to UK, EU and international candidates. Women and minority groups in STEM are explicitly encouraged to apply.

You will benefit from the comprehensive training provided within the School of Physical Sciences. EU or international students whose first language is not English are usually required to provide an IELTS (or equivalent) test score to demonstrate their proficiency in English. See link for full details Physics - University of Liverpool

To apply for the position please follow the instruction on this webpage How to apply for a PhD - University of Liverpool  

Please make sure you mention Prof Graziano Venanzoni as the proposed supervisor on your application form and quote studentship reference: PPPR045.