The Utah lattice gauge theory group collaborates with theorists worldwide, and it carries out its calculations on the most powerful computers in the US.
Precision test of the Standard Model. The plot shows two parameters of the Standard Model. They are determined from experimental measurements. Each band represents a different measurement, which gives a different range of possible values for the two parameters. Theoretical calculations like ours are required in order to get these parameters from the experiment. If the Standard Model is correct, the colored bands must intersect at a common point. That point is shown as a tiny black ellipse. This figure shows the status of the test as of 2015. So far, everything looks pretty consistent with the Standard Model. More precise experiments and theoretical calculations are currently under way. They will make the bands shrink, tighten the noose, and, perhaps, expose an inconsistency that will point us to new, more fundamental particles and processes. |