Kaon semileptonic decay form factors in two-flavor QCD

Abstract

We present a calculation of the kaon form factors in two-flavor QCD with the non-perturbatively $O(a)$-improved Wilson quark action. In order to achieve a few percent accuracy in the study of SU(3) breaking effects, we use a set of double ratios of the matrix elements, with which the bulk of the statistical fluctuation and the multiplicative renormalization factors cancel.

arXiv comment6 pages, 7 figures, talk presented at Lattice2005 (Weak matrix elements)

References in corpus (4)

• Light hadron spectroscopy with two flavors of $O(a)$-improved dynamical quarks
• Lattice QCD calculation of $\bar{B}\to Dl\bar{\nu }$ decay form factors at zero recoil
• The K -> pi vector form factor at zero momentum transfer on the lattice
• Full CKM matrix with lattice QCD

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• K->pi form factors with reduced model dependence
• Full determination of the CKM matrix using recent results from lattice QCD
• First Lattice QCD Study of the Sigma -> n Axial and Vector Form Factors with SU(3) Breaking Corrections
• Chiral Corrections to the Hyperon Vector Form Factors
• Chiral Extrapolation of the Strangeness Changing K pi Form Factor
• Kaon physics: a lattice perspective
• Measurement of the K_L \to πμνform factor parameters with the KLOE detector
• Lattice Kaon Physics
• Can we use hadronic tau decay for V_us determination