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Robert Szafron - Uncertainty of perturbative QCD predictions

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If you have a question about this talk, please contact Rene Poncelet .

Zoom: https://maths-cam-ac-uk.zoom.us/j/95336793441?pwd=U2V6aHJ6RllROVBtYy9VZlFnVlhYZz09 Meeting ID: 953 3679 3441 Passcode: 888178

Abstract:

Constantly increasing the accuracy of the experimental measurements at the Large Hadron Collider requires unprecedented precision of the theoretical calculations. The missing high-order corrections are becoming the limiting factor for the Standard Model tests. I will show how conspiracy between different partonic channels can lead to underestimating perturbative uncertainties in the traditionally used simple but ad hoc scale variation prescription with no probabilistic interpretation. I will discuss the alternative approach based on Bayesian methods.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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