Speaker
Lukas Varnhorst
(Aix-Marseille University)
Description
A lattice QCD determination of the nucleon sigma terms, which are closely related to the scalar charges of the nucleons, will be presented. These sigma terms determine the strength of the spin-independent interactions of nucleons with WIMPs searched for in direct dark matter detection experiments. They are also closely related to the masses of the nucleons. The calculation presented here is based on the Feynman-Hellmann theorem and features Wilson and staggered fermion formulations at different stages of the calculation to exploit their respective advantages.
Primary author
Lukas Varnhorst
(Aix-Marseille University)