Twenty-five years ago, scientists on the CDF and DZero particle physics experiments at Fermilab announced one of history’s biggest breakthroughs in particle physics: the discovery of the long-sought top quark. The collaborations on the two experiments jointly made the announcement on March 2, 1995, to much fanfare. We take a look back on this day in Fermilab history a quarter-century ago.
On July 15 in Ghent, Belgium, the European Physical Society formally presented the CDF and DZero collaborations with the High Energy and Particle Physics Prize “for the discovery of the top quark and the detailed measurement of its properties.”
From Duke Today, July 17, 2019: Teams behind the 1995 discovery are recognized for first observations of tiny but hefty particle at the heart of matter.
For over two decades, Spanish institutions have been collaborating with Fermilab. From the Tevatron era to the lab’s current neutrino experiments, Spain has made important contributions.
The CDF and DZero collaborations at Fermilab announced the discovery of the top quark in 1995, the final undiscovered quark of the six predicted by theory. The biannual prize is given for an outstanding contribution to high-energy and particle physics.
In a vote held earlier this month, the members of the CDF collaboration at Fermilab voted for co-spokespeople Giorgio Chiarelli, INFN Pisa, and Dave Toback, Texas A&M University, to serve as spokespersons for the remainder of the collaboration activities.
Physicists often find thrifty, ingenious ways to reuse equipment and resources. What do you do about an 800-ton magnet originally used to discover new particles? Send it off on a months-long journey via truck, train and ship halfway across the world to detect oscillating particles called neutrinos, of course. It’s all part of the vast recycling network of the physics community.
Measuring a certain parameter of particles emerging from Tevatron collisions helps us better understand how the unified electromagnetic and weak forces broke into separate distinct entities in the universe’s early moments.
From Texas A&M University, June 26, 2018: Toback points to CDF’s impact in its landmark 700th paper published last year in Physical Review D and in how it’s shed new light on the production rate of charm quarks.
Fermilab has placed a capstone on its study of the forward-backward asymmetry, and the measurements and theory now agree.