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Flavour physics involves the understanding of precision measurements of the decay modes and mixing of mesons containing various quark flavours. It is linked to CP violation and thus Dark Matter, and can give important clues of new physics beyond the standard model. Specific systems studied are Kaon and B-meson decays and mixing. The study of Kaons requires non-perturbative calculations in QCD using lattice simulation, while B-mesons are on the boundary between perturbative and non-perturbative methods and thus involve an interesting interplay between the two techniques.

The asymptotic freedom of QCD implies infrared slavery. Ab initio prediction of phenomena sensitive to the internal dynamics of hadrons requires theoretical treatment of QCD in its non-perturbative sector. One approach is to use numerical simulation to evaluate the Feynman path integral for processes in question. In conjunction with experimental results, these calculations can help determine fundamental parameters of Nature, such as the quark masses, the Strong coupling constant and CKM parameters.

Discretising space and time with sufficient resolution to describe hadrons such as the Kaon or B-meson requires powerful supercomputers. With these techniques we can make useful predictions for particle physics phenomenology. For example, by determining the semileptonic Weak decay amplitude of the Kaon, we can help determine the CKM matrix element $|V_{us}|$ from experiment. By determining the QCD contribution to the neutral kaon mixing amplitude we can help constrain the location of the apex of the unitarity triangle, and potentially discover New Physics.

## Peter Boyle

• University of Edinburgh

## Luigi Del Debbio

• University of Edinburgh

## Matteo Di Carlo

• University of Edinburgh

## Dr Felix Erben

• University of Edinburgh

## Dr Vera Gülpers

• University of Edinburgh

## Maxwell Hansen

• University of Edinburgh

## Roger Horsley

• University of Edinburgh

## Tony Kennedy

• University of Edinburgh

## Brian Pendleton

• University of Edinburgh

## Antonin Portelli

• University of Edinburgh

## Roman Zwicky

• University of Edinburgh

## Richard Brower

• Boston University

## Norman Christ

• Columbia University in the City of New York

## Rajan Gupta

• Los Alamos National Laboratory

## Martin Lüscher

• CERN Theory Department

## Chris Sachrajda

• University of Southampton

## Akira Ukawa

• University of Tsukuba

## Andreas Jüttner

• University of Southampton

## Raoul Hodgson

• University of Edinburgh

## Julia Kettle

• University of Edinburgh

## Michael Marshall

• University of Edinburgh

## Matthew Rowe

• University of Edinburgh

## Andrew Yong

• University of Edinburgh