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Costas Andreopoulos
Welcome to my home page!

I am a Reader (Associate Professor) in Experimental Particle Physics at the University of Liverpool, and a Scientist at the Rutherford Appleton Laboratory operated by the UK Science & Technology Facilities Council (STFC).

I study one of the most extraordinary, weird, mysterious characters in our universe: the Neutrino! We perform precision measurements of neutrino oscillations to uncover new physics and investigate the origin of matter-antimatter asymmetry in the universe.

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I conduct research in the T2K experiment in Japan. My effort is focussed primarily on the flagship oscillation measurements. I lead the activities of the VALOR fitting group. Since 2010, my group has produced a number of official T2K results on behalf of the full T2K collaboration (details here). I perform electron (anti-)neutrino appearance searches and precision measurements of muon (anti-)neutrino disappearance, and aim to produce strong direct evidence for neutrino CP violation.

I am centrally involved in preparations for the physics exploitation of the Fermilab Short-Baseline Neutrino (SBN) Programme. I serve as SBND Physics \& Analysis Tool co-Coordinator, and lead the development of a simultaneous sterile neutrino oscillation and systematics constraint fit for SBN, using VALOR, considering several exclusive samples from all three LArTPC detectors. I am also working towards preparations for SBND neutrino cross-section measurements of unprecedented precision, as well as a meta-analysis of all SBND measurements of neutrino interaction characteristics, aiming to produce an Argon tune of the GENIE MC generator for use in the early DUNE physics exploitation programme.

I serve as the DUNE-UK Physics Simulation and Experiment Design Work Package Coordinator and involved in R&D for the DUNE experiment in US - the world's next flagship neutrino experiment. I lead analyses for the derivation of physics-driven requirements for the experiment optimization and advanced analyses for the evaluation of different design options. With the VALOR group, I delivered the first-ever oscillation sensitivity calculations from an end-to-end analysis using full event simulation and reconstruction.

I am one of the main authors of GENIE, and co-spokesperson of the international GENIE collaboration. GENIE is the most commonly used neutrino interaction physics simulation: It provides a bridge between theory and measurement and it plays a crucial role throughout the lifecycle of every experiment. I serve as the Systematics & Tuning WG Coordinator and my effort is focussed on producing improved generator tunes and a leading global fit of scattering data.

I am one of the main authors and coordinator of the VALOR neutrino fitting group. The group plays a central role in the T2K oscillation analysis effort, as well as in sensitivity studies and the optimization of near detector for the Hyper-Kamiokande and DUNE experiments.

My group develops novel Deep Learning applications for the reconstruction and classification of neutrino events recorded in Liquid Argon Time Projection Chamber (LArTPC) detectors, with particular emphasis in the physics exploitation of SBND data.

I am passionate about teaching Physics at all levels, either on an one-to-one basis or in large lecture theatres. At Liverpool, I teach both core modules in classes of more than 100 students and in small tutorial groups. I also have had the privilege to direct the work of several brilliant PhD students, whose PhD dissertations presented world-leading results.