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Deutsche Forschungsgemeinschaft

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GRK 2044
Physikalisches Institut
Albert-Ludwigs-Universität Freiburg
Hermann-Herder-Str. 3
79104 Freiburg

+49 761 203 5715

Alexander Karlberg - Parton showers for the precision era of the LHC

Special seminar

Abstract: Parton showers are ubiquitous theoretical tools in collider physics providing a crucial link between theory and experiment. In this talk I will give a general introduction to parton showers and review recent developments in understanding and improving their accuracy - all within the context of the PanScales collaboration. One limitation of most parton showers is that they are inherently classical rather than quantum mechanical. Since the fundamental particles of Quantum ChromoDynamics carry both spin and colour, any faithful description of collider events must include quantum interference effects due to both. In the second half of the talk, I will therefore proceed to discuss in more detail how to incorporate quantum interference effects in parton showers, focusing mainly on spin correlations, and how to potentially measure them at colliders like the LHC.

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