Lu, Xianguo 卢显国 | Elementary Particle Physics Group

Associate Professor (CVLink opens in a new window)

Particle physics explores the basic building blocks of the world—the particles and forces that make up everything we see. By the time the Higgs boson was discovered, we believed we understood these constituents fairly well, yet we had only just begun to truly understand neutrinos—one of the most common yet most elusive particles in nature, which can be seen as the charge-neutral counterpart of electrons. Among the few deep questions now emerging is how mass is “distributed” among the different types of neutrinos. My research focuses on studying these particles through detector design, simulation, and data analysis, aiming to uncover how neutrinos behave and what they can reveal about the universe.

Outside of academia, I am a regular runner, having logged 570 kilometres in 2024. Been there, done that: Neckar River, Heidelberg (7k); Danube River, Bratislava (5k); Garonne River, Bordeaux (7k); Weiming Lake, Peking University (北大未名湖, 5k); Venice (5k); Central Park, New York (12k); and Lake Senba, Mito (水戸市千波湖, 10k).

Lectures

1. Warwick PX454: Theoretical Particle Physics, Part One: Introduction to Quantum Field Theory [lecture notes (2 MB )Link opens in a new window], 2024, 2025
2. Accelerator and Atmospheric Neutrinos, The 2nd JUNO Neutrino Summer SchoolLink opens in a new window, Hangzhou Institute for Advanced Studies, Hangzhou, China, August 2025
   • Part 1: full (65 MB )Link opens in a new window, no animation (14 MB )Link opens in a new window
   • Part 2: full (71 MB )Link opens in a new window, no animation (15 MB )Link opens in a new window

Research Focus: Transverse Kinematic Imbalance (TKI)

Since 2015, Transverse Kinematic Imbalance (TKI)—along with its longitudinal and three-dimensional variations and the derived asymmetry ^[1,2,3]—has been a key observable in accelerator neutrino experiments, providing valuable insights into primary neutrino interactions and the underlying nuclear processes ^{[4, 5, 6, 7, 8]}. Beyond probing in-medium effects, TKI enables event-by-event measurements of neutrino-hydrogen interactions ^{[9, 10]}, further advancing precision neutrino physics.

Visualising Neutrino Oscillations

VISOS (VISualisation of OScillation)