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Perimeter Institute brings great thinkers from around the world to Canada to share their ideas on a wide variety of interesting and topical subjects. Each event is tailored for the general public and everyone is welcome to attend. No mathematical or scientific knowledge is necessary or assumed.

The most wanted particle
Jon Butterworth, University College London

WEDNESDAY, April 1, 2015 AT 7:00 PM

Tickets are sold out.  

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In what promises to be a smashing public lecture, Jon Butterworth will give a personal account of what it is like to work on the largest experiment ever built, the Large Hadron Collider at CERN. He will recount the excitement and tension surrounding the quest, under unprecedented media and public attention, to find the famous Higgs boson. Butterworth, a physics professor at University College London (UCL), will explain the motivation and importance of the Higgs search, discuss his specific research at CERN’s ATLAS detector, and speculate on the exciting breakthroughs that still await in the world of high-energy physics.

Jon Butterworth - Photo Credit: Claudia MarcelloniJon Butterworth grew up in Manchester, UK, and took his Bachelor of Physics and his doctorate in Oxford. He worked for Penn State University on the HERA electron-proton collider in Hamburg, before moving to UCL in 1995, later becoming one of the leading members of the ATLAS collaboration at the CERN Large Hadron Collider. He won the UK Institute of Physics Chadwick Medal in 2013 for his contributions to particle physics. He is Head of the Department of Physics & Astronomy at UCL, and writes a Life and Physics blog for the Guardian. His most recent book, Most Wanted Particle, was published in Canada in January 2015.

Photo credit: Claudia Marcelloni


Attendance to the lecture is free, but advance tickets are required. Due to the overwhelming response to past lectures, tickets will be honoured until 6:45 pm only. If you have not arrived by 6:45 pm your reservation may be filled by guests in our waiting line, and you may be asked to join the end of the waiting line.


There will be a waiting line for last minute cancelled (or ‘no show’) seats on the night of the lecture. Doors open at 5:30 pm. Come to Perimeter and pick-up a waiting line chit at the Waiting Line sign and then participate in pre-lecture activities - no need to wait in line. An announcement will be made in the Bistro at 6:45pm if theatre seats are available. Note: you must arrive in person to be part of the waiting line and be in the Bistro when the waiting line announcement is made.


Everyone who comes to Perimeter will be able to participate in the lecture. The public lecture will be shown simultaneously on closed circuit television in the licensed comfort of the Black Hole Bistro for any members of the waiting line who are not able to get a theatre seat.


Enjoy the live webcast of Perimeter Institute Public Lectures from the comfort of your own home. Join us at 7pm ET night of the lecture and be part of the ONLINE virtual audience. You can also sign up for an email reminder to watch the lecture.

For most lectures the on-demand playback will be online within 24 hours after the live event. Check our YouTube page for the playbacks.