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John Marshall

Research Interests

My major research interest is the reconstruction of subatomic particle interactions in fine-granularity detectors. Such detectors provide detailed images of complex event topologies, in which individual particles must be resolved. Whilst the human eye/brain can excel at identifying features in the recorded events, it is a significant challenge to develop an automated solution.

I am author of the Pandora software framework for developing and running pattern-recognition algorithms. Pandora promotes a multi-algorithm approach to pattern recognition, in which many algorithms gradually build up a picture of structures in images. Pandora algorithms frequently use machine-learning approaches to drive pattern-recognition decisions.

Pandora algorithms provide an automated reconstruction of neutrino interactions in the Liquid- Argon Time-Projection Chambers (LArTPCs) being operated and developed for the short- and long-baseline neutrino physics programmes. The algorithms are used by MicroBooNE and DUNE.

Pandora algorithms also provide the particle flow calorimetry used by the International Linear Collider and Compact Linear Collider experiments. The algorithms provide the baseline for all studies of detector optimisation and physics sensitivity for a future e+e- linear collider.

Some selected publications:


I currently teach PX455Link opens in a new window Frontiers of Particle Physics (Neutrino Physics) (Moodle pageLink opens in a new window, for student access)

Write to:

Department of Physics, University of Warwick, Coventry, CV4 7AL

Contact Details:

Office: PS0.13Link opens in a new window
+44 (0)2476 150356
+44 (0)2476 150897


The homepageLink opens in a new window of the Pandora pattern-recognition project

Click hereLink opens in a new window for Postgraduate study opportunities with the EPP Group