Standard Model

The article by Wally Greenberg in the spring 2015 Institute Letter mentions the anomalous axial current triangle diagram and describes its connection with counting quark degrees of freedom. This derives from a calculation I did when a...

In recent decades, physicists and astronomers have discovered two beautiful Standard Models, one for the quantum world of extremely short distances, and one for the universe as a whole. Both models have had spectacular success...

Following the discovery in July of a Higgs-like boson—an effort that took more than fifty years of experimental work and more than 10,000 scientists and engineers working on the Large Hadron Collider—Juan Maldacena and Nima Arkani-Hamed, two...

It is indeed an endless cycle of imagination and concentration, of divergence and convergence, of playing and thinking that deter­mines the rhythm of science and scholarship. The Institute is devoted to creating and sup­porting these experiences and the resulting, often surprising, advancements in knowledge.

Before dawn on July 4, CERN scientists announced the discovery of a new particle consistent with the boson predicted nearly fifty years ago by Peter Higgs. He gave one of his first seminars on his theory at the Institute at the invitation of...

In the twentieth century, mathematicians developed a deep theory of knots, which was revolutionized by the discovery of the Jones polynomial—a way to calculate a number for every knot—by Vaughan F. R. Jones in the early...

One of the remarkable discoveries in astrophysics has been the recognition that the material we see and are familiar with, which makes up the earth, the sun, the stars, and everyday objects, such as a table, is only a small fraction of all of the...

In the public lecture “The World’s Largest Experiment,” Nathan Seiberg, Professor in the School of Natural Sciences, discusses the Large Hadron Collider (LHC) and the potential discoveries it may yield—among them, new insights...