23–27 Sept 2026
Novotel Cairns Oasis Resort
Australia/Brisbane timezone

Renormalisation process for disconnected operators from Feynman-Hellmann techniques in lattice QCD

23 Sept 2026, 16:30
30m
Novotel Cairns Oasis Resort

Novotel Cairns Oasis Resort

Nuclear Structure and Reactions

Speaker

Dr Tomas Howson (Adelaide University)

Description

Defining a renormalisation process that incorporates mixing between connected and disconnected operators, both in the quark and gluon sectors, relies on measuring disconnected operators inserted on bare lattice quark and gluon propagators. In this talk, I will discuss calculations of these operators through Feynman-Hellmann techniques, and the results of renormalised hadronic operators when considering the full mixing matrix, in both quenched and dynamical lattice QCD simulations.

Author

Dr Tomas Howson (Adelaide University)

Presentation materials

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