Quenching effects in strong penguin contributions to ε′/ε

Jack Laiho

doi:10.1016/j.nuclphysbps.2004.11.278

Quenching effects in strong penguin contributions to ε′/ε

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

Abstract

Quenching effects in strong penguin matrix elements are investigated. A lattice determination of α_q^NS, the constant that appears in the quenched ChPT relevant for the lattice analysis of K → ππ matrix elements, shows that this constant is large. The original RBC analysis of Q₆ matrix elements is revisited in light of this result. Also, the numerical effects of choosing the singlet Golterman-Pallante method of quenching Q₆ is investigated.

Original language	English (US)
Pages (from-to)	372-374
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	140
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nuclphysbps.2004.11.278
State	Published - Mar 2005
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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10.1016/j.nuclphysbps.2004.11.278

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title = "Quenching effects in strong penguin contributions to ε′/ε",

abstract = "Quenching effects in strong penguin matrix elements are investigated. A lattice determination of αqNS, the constant that appears in the quenched ChPT relevant for the lattice analysis of K → ππ matrix elements, shows that this constant is large. The original RBC analysis of Q6 matrix elements is revisited in light of this result. Also, the numerical effects of choosing the singlet Golterman-Pallante method of quenching Q6 is investigated.",

author = "Jack Laiho",

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AB - Quenching effects in strong penguin matrix elements are investigated. A lattice determination of αqNS, the constant that appears in the quenched ChPT relevant for the lattice analysis of K → ππ matrix elements, shows that this constant is large. The original RBC analysis of Q6 matrix elements is revisited in light of this result. Also, the numerical effects of choosing the singlet Golterman-Pallante method of quenching Q6 is investigated.

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JO - Nuclear Physics B - Proceedings Supplements

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Quenching effects in strong penguin contributions to ε′/ε

Abstract

ASJC Scopus subject areas

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