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Biography

My research interests are in experimental high energy physics, where my current specialisms are hardware-based trigger systems, and statistical modelling for data analysis. I joined the ATLAS experiment at the Large Hadron Collider (LHC), CERN, in 2009. Some of my most significant contributions to the experiment have been made through the Level-1 Calorimeter Trigger system, which is a low-latency electronic decision system responsible for selecting what data should be read out from the ATLAS detector; the system is responsible for identifying features-of-interest in the data within an approximate 2 microseconds timeframe before the data is lost due to buffer limitations. I am currently working with my collaborators to deliver an upgrade to the ATLAS trigger system at the end of this decade, which will see the detector ready for the increased collision rate that will be delivered by an upgrade of LHC accelerator (HL-LHC).

My other area of research activity is in statistical analysis for collider experiments. In 2020 I created xRooFit [1], a high-level API for statistical model building, inference, hypothesis testing, and analysis preservation, and the technology has since been integrated into the ROOT [2] analysis software toolkit that is used by every experiment at the LHC. Many of the results published by ATLAS today are powered by the xRooFit technology.

At Â鶹ƵµÀ I supervise undergraduate Natural Scientists in Part IA Maths and Physics, and Part IB Physics. I am also a Director of Studies for Part I Natural Sciences and Part II Physics and Astrophysics.

[1] xRooFit: https://doi.org/10.5281/zenodo.15095379

[2] ROOT:

Degrees:

• PhD in Experimental Particle Physics from Cambridge
• MSci Physics from Cambridge