Colloquium Richard Wigmans (Texas Tech U)

14 - 09 - 2018 om 11:00 tot 14 - 09 - 2018 om 12:00


Friday 14 September, 11.00h, at Nikhef in H331.

Speaker: Richard Wigmans (Texas Tech U)

Title: “Calorimetry in the 21st century”

Abstract:

In the past 50 years, calorimeters have become the most important detectors for
many experiments in particle physics, especially at colliders. Whereas these instruments allow measurements of the properties of high-energy electrons and gammas with unprecedented precision, their performance for hadrons and jets leaves much to be desired. Poor energy resolution, signal non-linearities and non-Gaussian response functions limit the quality of the physics information they can provide.

In this talk, I will describe the root causes of these problems, and present three solutions that have been proposed to remedy this situation: compensation, dual readout and particle flow analysis. Experimental results obtained with these techniques will be presented and their merits compared.

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