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School of Physical and Chemical Sciences

Parton showers beyond leading logarithmic accuracy - Dr Keith Hamilton (UCL)

1 October 2020

Time: 3:00 - 4:00pm
Speaker: Dr Keith Hamilton (UCL)
Venue: Zoom event

Title: Parton showers beyond leading logarithmic accuracy

Abstract: Parton showers are among the most widely used tools in collider physics. Despite their key importance, none so far has been able to demonstrate accuracy beyond a basic level known as leading logarithmic (LL) order. We propose criteria for parton showers to be considered accurate at the next-to-leading logarithmic (NLL) level. We go on to introduce new classes of shower, for final-state radiation, satisfying the main elements of these criteria in the large-Nc limit. Finally, we compare results from concrete implementations of the new showers to those of observable-specific, analytical, NLL calculations.

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