Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses

E. Gámiz, A. Bazavov, C. Bernard, C. Bouchard, C. Detar, D. Du, A. X. El-Khadra, J. Foley, E. D. Freeland, Steven Gottlieb, U. M. Heller, J. Kim, A. S. Kronfeld, John W Laiho, L. Levkova, P. B. Mackenzie, E. T. Neilk, M. B. Oktay, Si Wei Qiu, J. N. SimoneR. Sugar, D. Toussaint, R. S. Van De Water, Ran Zhou

Research output: Contribution to journal › Article

1 Scopus citations

Abstract

We present results for the form factor f+Kπ (0), needed to extract the CKM matrix element jVusj from experimental data on semileptonic K decays, on the HISQ Nf = 2+1+1 MILC configurations. The HISQ action is also used for the valence sector. The data set used for our final result includes three different values of the lattice spacing and data at the physical light quark masses. We discuss the error budget and how this calculation improves on our previous determination of f+Kπ (0) on the asqtad Nf = 2+1 MILC configurations.

Original languageEnglish (US)
Article number395
JournalUnknown Journal
Volume29-July-2013
StatePublished - 2013

ASJC Scopus subject areas

  • General

Access to Document

Fingerprint Dive into the research topics of 'Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses'. Together they form a unique fingerprint.

    • Cite this

    Gámiz, E., Bazavov, A., Bernard, C., Bouchard, C., Detar, C., Du, D., El-Khadra, A. X., Foley, J., Freeland, E. D., Gottlieb, S., Heller, U. M., Kim, J., Kronfeld, A. S., Laiho, J. W., Levkova, L., Mackenzie, P. B., Neilk, E. T., Oktay, M. B., Qiu, S. W., ... Zhou, R. (2013). Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses. Unknown Journal, 29-July-2013, [395].