Probing TeV physics through lattice neutron-decay matrix elements

Abstract

Precision low-energy measurements provide constraints on the Standard Model and can discern the signatures predicted for particles beyond the Standard Model. In the case of the neutron beta decay, potential new TeV-scale particles may be probed through scalar and tensor interactions. Lattice QCD provides the most accurate low-energy nucleon matrix elements needed to relate the experiments to BSM constraints. These constraints from the low-energy sector will be compared with current and near-future limits provided by the LHC.