Projects per year
Abstract
We outline a strategy to efficiently include the electromagnetic interactions of the sea quarks in QCD+QED. When computing iso-spin breaking corrections to hadronic quantities at leading order in the electromagnetic coupling, the sea-quark charges result in quark-line disconnected diagrams which are challenging to compute precisely. An analysis of the variance of stochastic estimators for the relevant traces of quark propagators helps us to improve the situation for certain flavour combinations and space-time decompositions. We present preliminary numerical results for the variances of the corresponding contributions using an ensemble of Nf = 2 + 1 domain-wall fermions generated by the RBC/UKQCD collaboration.
Original language | English |
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Title of host publication | Proceedings of Science |
Publisher | Sissa Medialab Srl |
Pages | 1-9 |
Number of pages | 9 |
Volume | 430 |
DOIs | |
Publication status | Published - 6 Apr 2023 |
Event | 39th International Symposium on Lattice Field Theory, LATTICE 2022 - Bonn, Germany Duration: 8 Aug 2022 → 13 Aug 2022 Conference number: 39 https://pos.sissa.it/cgi-bin/reader/family.cgi?code=lattice |
Publication series
Name | Proceedings of Science |
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Publisher | Sissa Medialab Srl |
ISSN (Print) | 1824-8039 |
Conference
Conference | 39th International Symposium on Lattice Field Theory, LATTICE 2022 |
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Country/Territory | Germany |
City | Bonn |
Period | 8/08/22 → 13/08/22 |
Internet address |
Fingerprint
Dive into the research topics of 'Efficiently unquenching QCD+QED at O(α)'. Together they form a unique fingerprint.Projects
- 2 Finished
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Particle Theory at the Higgs Centre
Ball, R., Boyle, P., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., O'Connell, D., Smillie, J. & Zwicky, R.
1/10/17 → 30/09/21
Project: Research