The 2021 Tri-Institute Summer School on Elementary Particles (TRISEP) will be held virtually from June 14th to 25th, 2021 and hosted by SNOLAB. TRISEP is an international summer school organized jointly by the Perimeter Institute for Theoretical Physics, SNOLAB, Canada’s deep underground physics lab, and TRIUMF, Canada’s particle accelerator centre.

This interactive school will feature lectures by leading experts in the field of particle physics and is designed with ample time for group work, problem solving, and discussions with the speakers. TRISEP is intended for graduate students of all levels who have taken an advanced quantum mechanics class and an introductory particle physics class.

TRISEP colloquium – What is probability?

On Friday June 25 at 10am EDT, Prof. Louis Lyons (Oxford & Imperial College London) will present a talk “What is probability? Bayes and Frequentist approaches”.


The application window is closed for TRISEP-2021. If you have already submitted an application, please ensure that your advisor sends their recommendation letter of support to trisep2021[at]trisep.ca by 2 April, 2021.

  • Applications will be accepted until March 14th.
  • Review of applications will begin at the deadline and continue for a two week period. 
  • Successful applicants will be notified by email and sent a registration link.


TRISEP 2021 lectures include:

  • Sally Dawson (Brookhaven National Laboratory)
  • Michelle Dolinski (Drexel University)
  • Steve Elliott (Los Alamos National Lab)
  • Deborah Harris (York University/Fermilab )
  • Matthew Johnson (York University)
  • Louis Lyons (University of Oxford)
  • David Morrissey (TRIUMF)
  • Wolfgang Rau (TRIUMF/McDonald Institute)
  • Pearl Sandick (University of Utah)


Previous schools

Previous TRISEP schools: 2019, 2018, 2017201620152014 and 2013.

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