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, J. Laiho, L. Levkova, P. B. Mackenzie, E. T. Neilk, M. B. Oktay, Si Wei Qiu, J. N. Simone & 4 others R. Sugar, William D Toussaint, R. S. Van De Water, Ran Zhou

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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
JournalProceedings of Science
Volume29-July-2013
StatePublished - 2013

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form factors
fermions
quarks
configurations
budgets
sectors
spacing
valence
decay
matrices

ASJC Scopus subject areas

  • General

Cite this

Gámiz, E., Bazavov, A., Bernard, C., Bouchard, C., Detar, C., Du, D., ... Zhou, R. (2013). Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses. Proceedings of Science, 29-July-2013, [395].

Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses. / Gámiz, E.; Bazavov, A.; Bernard, C.; Bouchard, C.; Detar, C.; Du, D.; El-Khadra, A. X.; Foley, J.; Freeland, E. D.; Gottlieb, Steven; Heller, U. M.; Kim, J.; Kronfeld, A. S.; Laiho, J.; Levkova, L.; Mackenzie, P. B.; Neilk, E. T.; Oktay, M. B.; Qiu, Si Wei; Simone, J. N.; Sugar, R.; Toussaint, William D; Van De Water, R. S.; Zhou, Ran.

In: Proceedings of Science, Vol. 29-July-2013, 395, 2013.

Research output: Contribution to journalArticle

Gámiz, E, Bazavov, A, Bernard, C, Bouchard, C, Detar, C, Du, D, El-Khadra, AX, Foley, J, Freeland, ED, Gottlieb, S, Heller, UM, Kim, J, Kronfeld, AS, Laiho, J, Levkova, L, Mackenzie, PB, Neilk, ET, Oktay, MB, Qiu, SW, Simone, JN, Sugar, R, Toussaint, WD, Van De Water, RS & Zhou, R 2013, 'Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses', Proceedings of Science, vol. 29-July-2013, 395.
Gámiz E, Bazavov A, Bernard C, Bouchard C, Detar C, Du D et al. Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses. Proceedings of Science. 2013;29-July-2013. 395.
Gámiz, E. ; Bazavov, A. ; Bernard, C. ; Bouchard, C. ; Detar, C. ; Du, D. ; El-Khadra, A. X. ; Foley, J. ; Freeland, E. D. ; Gottlieb, Steven ; Heller, U. M. ; Kim, J. ; Kronfeld, A. S. ; Laiho, J. ; Levkova, L. ; Mackenzie, P. B. ; Neilk, E. T. ; Oktay, M. B. ; Qiu, Si Wei ; Simone, J. N. ; Sugar, R. ; Toussaint, William D ; Van De Water, R. S. ; Zhou, Ran. / Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses. In: Proceedings of Science. 2013 ; Vol. 29-July-2013.
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AU - Gámiz, E.

AU - Bazavov, A.

AU - Bernard, C.

AU - Bouchard, C.

AU - Detar, C.

AU - Du, D.

AU - El-Khadra, A. X.

AU - Foley, J.

AU - Freeland, E. D.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Kim, J.

AU - Kronfeld, A. S.

AU - Laiho, J.

AU - Levkova, L.

AU - Mackenzie, P. B.

AU - Neilk, E. T.

AU - Oktay, M. B.

AU - Qiu, Si Wei

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, William D

AU - Van De Water, R. S.

AU - Zhou, Ran

PY - 2013

Y1 - 2013

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