"New Windows into the Strong Interaction" by Iain Stewart (MIT)

Thursday, November 9, 2017 - 4:00pm to 5:00pm
Physics and Astronomy Colloquium

Thursdays, 4:00-5:00 pm

1-434 Physics and Astronomy (map)
Reception from 3:30-4:00 p.m.
(unless otherwise posted)

Guest Speaker:

Iain Stewart (Massachusetts Institute of Technology)

Talk Title:  “New Windows into the Strong Interaction”


The strong interaction is described by a remarkable theory called Quantum Chromodynamics (QCD), a fully consistent quantum field theory at all distance scales which gives rise to interesting emergent phenomena.  It plays a crucial role in a variety of interesting physical processes, from binding together quarks and gluons in the proton, to the evolution of matter in the early universe, to producing streams of collimated particles called jets in high energy collisions.  Precise control over the strong interaction is necessary for studies of the Higgs boson, as well as for measuring the fundamental parameters of the standard model of particle and nuclear physics.   In this talk I will describe modern developments that enable precision control of the strong interaction in certain situations, as well as a number of important open questions.   Examples will include enhancing our understanding of jet data to dramatically improve the measurement of one of the fundamental parameters of nature, the strong interaction coupling constant, and improving predictions for proton collisions to strengthen our ability to hunt for new particles and forces at very short distances.

For more information, contact Jay Hauser

We thank the following people for their contributions to the wine fund for the post-colloquium reception:
Prof. Dolores Bozovic, Prof. Robijn Bruinsma, Prof. Iain Stewart, Prof. Bob Cousins, Prof. Jay Hauser, Prof. Eric Hudson, Robert Huff, Prof. HongWen Jiang, Prof. Alex Kusenko, Prof. John Miao, Prof. George Morales, Prof. Pietro Musumeci, Prof. Christoph Niemann, Prof. Rene Ong, Prof. James Rosenzweig, Prof. David Saltzberg, Prof. Jean Turner, and Prof. Gary Williams.


1-434 PAB