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The hadronic vacuum polarization with twisted boundary conditions

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arxiv 1311.1078 v1 pith:JZZCE7X2 submitted 2013-11-05 hep-lat

The hadronic vacuum polarization with twisted boundary conditions

classification hep-lat
keywords boundaryconditionshadronictwistedintegralmomentamuonpolarization
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The leading-order hadronic contribution to the anomalous magnetic moment of the muon is given by a weighted integral over the subtracted hadronic vacuum polarization. This integral is dominated by euclidean momenta of order the muon mass which are not available on current lattice volumes with periodic boundary conditions. Twisted boundary conditions can in principle help access momenta of any size even in a finite volume. We investigate the implementation of twisted boundary conditions both numerically (using all-mode averaging for improved statistics) and analytically, and present our initial results.

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