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Chiral perturbation theory with Wilson-type fermions including a2 effects

✍ Scribed by Sinya Aoki

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 703 KB
Volume: 128
Category: Article
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)02452-6

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✦ Synopsis

We derive the quark mass dependence of mz, mAwi and fir, using the chiral perturbation theory which includes the a2 effect associated with the explicit choral symmetry breaking of the Wilson-type fermions, in the case of the ZVf = 2 degenerate quarks. By fitting the mass dependence of rnt and mAwI, obtained by the CP-PACS collaboration for Nr = 2 full QCD simulations, it is shown that the data are consistently described by the derived formulae.

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