This June 11, 2019 announcement (received via email) features an upcoming talk hosted by the local Café Scientifque community,

Our next café will happen on TUESDAY, JUNE 25TH at 7:30PM in the back
room at YAGGER’S DOWNTOWN (433 W Pender). Our speaker for the
evening will be DR. LARS MARTIN.

FROM ALPHA TO OMEGA – PARTICLES AND HOW WE DETECT THEM

Ever since the discovery of the electron in the late 19th century,
physicists have used detectors to measure and identify particles. While
today’s detector systems – like ATLAS at the Large Hadron Collider – are
complex (and expensive) systems that detect obscure particles, the
underlying principles of these detectors are relatively straightforward.
The goal of this talk is to give attendees a basic understanding of what
these machines actually do.

Lars Martin works as a detector physicist at TRIUMF, most recently
supporting the ALPHA-g antimatter gravity experiment at CERN.

We hope to see you there!

I’m not able to find much about Lars Martin other than a listing in the TRIUMF (Canada’s particle accelerator centre) employee directory and a listing on Research Gate. You can find out more about TRIUMF here and about CERN (European Organization for Nuclear Research) here.