Decay constants and sigma terms from the lattice

Budapest-Marseille-Wuppertal Collaboration

Research output: Contribution to journalConference articlepeer-review


Thanks to the recent developments both in our understanding of lattice simulations and in computer power, accurate predictions can now be made in nonperturbative QCD, with all sources of error under control. I review recent results of the Budapest-Marseille-Wuppertal lattice collaboration. The first concern the pion and kaon leptonic decay constants, which can be combined with experiment to determine CKM matrix elements and check the unitarity of this matrix's first row. The second pertain to the nucleon sigma terms, which are important for calculating the sensitivity to dark matter of direct search experiments. For the latter, preliminary results based on a subset of our new dataset will be presented. I will emphasize how we are able to control systematic errors in these calculations.

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2010
Event35th International Conference of High Energy Physics, ICHEP 2010 - Paris, France
Duration: Jul 22 2010Jul 28 2010

All Science Journal Classification (ASJC) codes

  • General


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