14–19 Jun 2010
Villasimius, Sardinia
Europe/Rome timezone

Hadron electric polarizability -- finite volume corrections

15 Jun 2010, 15:30
20m
Room1 (Villasimius, Sardinia)

Room1

Villasimius, Sardinia

Tanka Village
Hadronic structure and interactions Parallel 25: Hadronic structure and interactions

Speaker

Andrei Alexandru (The George Washington University)

Description

Hadron polarizability are usually measured on the lattice using the background field method. To create a uniform field one can use either periodic boundary conditions that force the electromagnetic field to assume quantized values or Dirichlet boundary conditions where the field can assume any value but the translational invariance is broken. In both cases, the energy shifts measured have finite volume corrections that decay slowly with increasing lattice size. In this talk we discuss these corrections and present results for electric polarizability on different lattice sizes.
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Primary author

Andrei Alexandru (The George Washington University)

Co-author

Frank Lee (The George Washington University)

Presentation materials