Wilson-like fermions and the static B_B parameter with no chirality breaking mixings

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

I consider the recent proposal by R. Frezzotti and G. Rossi to chirally improve Wilson fermions in such a way that mixings among operators of different chirality can be excluded. The method, which is based on the use of twisted mass QCD with several replica of valence quarks, is extended here to static-light systems. The operators relevant for the computation of the B_B parameter (in the static approximation) are discussed. In this case the same renormalization pattern as for Ginsparg-Wilson fermions is obtained by a simple modification of the discretization of the action for valence quarks.
OriginalsprogUdefineret/Ukendt
TidsskriftNuclear and Particle Physics Proceedings
ISSN2405-6014
DOI
StatusUdgivet - 2. sep. 2004

Bibliografisk note

3 pages, talk given at Lattice2004(heavy), Fermilab, June 21-26, 2004

Emneord

  • hep-lat

Citer dette

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abstract = "I consider the recent proposal by R. Frezzotti and G. Rossi to chirally improve Wilson fermions in such a way that mixings among operators of different chirality can be excluded. The method, which is based on the use of twisted mass QCD with several replica of valence quarks, is extended here to static-light systems. The operators relevant for the computation of the B_B parameter (in the static approximation) are discussed. In this case the same renormalization pattern as for Ginsparg-Wilson fermions is obtained by a simple modification of the discretization of the action for valence quarks.",
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Wilson-like fermions and the static B_B parameter with no chirality breaking mixings. / Morte, Michele Della.

I: Nuclear and Particle Physics Proceedings, 02.09.2004.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Wilson-like fermions and the static B_B parameter with no chirality breaking mixings

AU - Morte, Michele Della

N1 - 3 pages, talk given at Lattice2004(heavy), Fermilab, June 21-26, 2004

PY - 2004/9/2

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N2 - I consider the recent proposal by R. Frezzotti and G. Rossi to chirally improve Wilson fermions in such a way that mixings among operators of different chirality can be excluded. The method, which is based on the use of twisted mass QCD with several replica of valence quarks, is extended here to static-light systems. The operators relevant for the computation of the B_B parameter (in the static approximation) are discussed. In this case the same renormalization pattern as for Ginsparg-Wilson fermions is obtained by a simple modification of the discretization of the action for valence quarks.

AB - I consider the recent proposal by R. Frezzotti and G. Rossi to chirally improve Wilson fermions in such a way that mixings among operators of different chirality can be excluded. The method, which is based on the use of twisted mass QCD with several replica of valence quarks, is extended here to static-light systems. The operators relevant for the computation of the B_B parameter (in the static approximation) are discussed. In this case the same renormalization pattern as for Ginsparg-Wilson fermions is obtained by a simple modification of the discretization of the action for valence quarks.

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DO - 10.1016/j.nuclphysbps.2004.11.343

M3 - Tidsskriftartikel

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

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