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  • 标题:B0-B0bar mixing in the static approximation from the Schrödinger Functional and tmQCD
  • 本地全文:下载
  • 作者:F. Palombi ; M. Papinutto ; C. Pena,H.,Wittig
  • 期刊名称:PoS - Proceedings of Science
  • 印刷版ISSN:1824-8039
  • 出版年度:2005
  • 卷号:2005
  • 出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
  • 摘要:We discuss the renormalisation properties of parity-odd DB = 2 operators with the heavy quark treated in the static approximation. Via twisted mass QCD (tmQCD), these operators provide the matrix elements relevant for the B0 − ¯B0 mixing amplitude. The layout of a non-perturbative renormalisation programme for the operator basis, using Schrödinger Functional techniques, is described. Finally, we report our results for a one-loop perturbative study of various renormalisation schemes with Wilson-type lattice regularisations, which allows, in particular, to compute the NLO anomalous dimensions of the operators in the SF schemes of interest.
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