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Physics results from dynamical overlap fermion simulations

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 نشر من قبل Shoji Hashimoto
 تاريخ النشر 2008
  مجال البحث
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 تأليف Shoji Hashimoto




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I summarize the physics results obtained from large-scale dynamical overlap fermion simulations by the JLQCD and TWQCD collaborations. The numerical simulations are performed at a fixed global topological sector; the physics results in the theta-vacuum is reconstructed by correcting the finite volume effect, for which the measurement of the topological susceptibility is crucial. Physics applications we studied so far include a calculation of chiral condensate, pion mass, decay constant, form factors, as well as (vector and axial-vector) vacuum polarization functions and nucleon sigma term.



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