Status and Prospect of ε′/ε from a Lattice perspective

Garron, Nicolas ORCID: 0000-0002-4428-3984 (2017) Status and Prospect of ε′/ε from a Lattice perspective. X INTERNATIONAL CONFERENCE ON KAON PHYSICS, 800 (1). 012003-012003.

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Abstract

An ab-initio determination of the hadronic matrix elements relevant for a theoretical determination of K → ππ decays has been a goal for the lattice QCD community for about three decades. These matrix elements are key to the theoretical determination of the CP violation parameters ϵ and ϵ′. This is not only relevant to challenge the Standard Model but also to provide stringent constraints on New-Physics scenarios. Although such a computation is very challenging, impressive results have been reported over the last few years. The most spectacular is the first realistic computation of ϵ′/ϵ with physical kinematics by RBC-UKQCD [1]. The novelty is the ΔI →1/2 channel, whereas the ΔI →3/2 contribution is now computed at several values of the lattice spacing and extrapolated to the continuum limit. After a short overview, I will report on the status and the prospect of direct and indirect violation in kaon decays from a lattice perspective.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	30 Mar 2017 14:40
Last Modified:	12 Oct 2023 10:58
DOI:	10.1088/1742-6596/800/1/012003
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3006728