Analytic estimates of quenched penguins

Maarten Golterman; Santiago Peris

doi:10.1016/S0920-5632(03)02566-0

Analytic estimates of quenched penguins

Maarten Golterman, Santiago Peris

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

3 Citations (Scopus)

Abstract

When we embed the strong penguin operator Q6 in the quenched theory, it does not remain a singlet under right-handed chiral transformations. As a consequence, more low-energy constants associated with this operator appear than in the unquenched theory. We give analytic estimates of the leading constants. The results suggest that the effects of quenching on this operator are large. © 2004 Published by Elsevier B.V.

Original language	English
Pages (from-to)	311-313
Journal	Nuclear Physics B - Proceedings Supplements
Volume	129-130
DOIs	https://doi.org/10.1016/S0920-5632(03)02566-0
Publication status	Published - 1 Jan 2004

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title = "Analytic estimates of quenched penguins",

abstract = "When we embed the strong penguin operator Q6 in the quenched theory, it does not remain a singlet under right-handed chiral transformations. As a consequence, more low-energy constants associated with this operator appear than in the unquenched theory. We give analytic estimates of the leading constants. The results suggest that the effects of quenching on this operator are large. {\textcopyright} 2004 Published by Elsevier B.V.",

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AU - Golterman, Maarten

AU - Peris, Santiago

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N2 - When we embed the strong penguin operator Q6 in the quenched theory, it does not remain a singlet under right-handed chiral transformations. As a consequence, more low-energy constants associated with this operator appear than in the unquenched theory. We give analytic estimates of the leading constants. The results suggest that the effects of quenching on this operator are large. © 2004 Published by Elsevier B.V.

AB - When we embed the strong penguin operator Q6 in the quenched theory, it does not remain a singlet under right-handed chiral transformations. As a consequence, more low-energy constants associated with this operator appear than in the unquenched theory. We give analytic estimates of the leading constants. The results suggest that the effects of quenching on this operator are large. © 2004 Published by Elsevier B.V.

U2 - 10.1016/S0920-5632(03)02566-0

DO - 10.1016/S0920-5632(03)02566-0

M3 - Article

VL - 129-130

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EP - 313

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