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; R. Sugar; D. Toussaint; R. S. Van De Water; Ran Zhou

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. SimoneR. Sugar, D. Toussaint, R. S. Van De Water, Ran Zhou

Department of Physics

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

2 Scopus citations

Abstract

We present results for the form factor f₊K^π (0), needed to extract the CKM matrix element jVusj from experimental data on semileptonic K decays, on the HISQ N_f = 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₊K^π (0) on the asqtad N_f = 2+1 MILC configurations.

Original language	English (US)
Article number	395
Journal	Proceedings of Science
Volume	29-July-2013
State	Published - 2013
Event	31st International Symposium on Lattice Field Theory, LATTICE 2013 - Mainz, Germany Duration: Jul 29 2013 → Aug 3 2013

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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., 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. Proceedings of Science, 29-July-2013, [395].

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, D, 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.

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

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.",

author = "E. G{\'a}miz and A. Bazavov and C. Bernard and C. Bouchard and C. Detar and D. Du and El-Khadra, {A. X.} and J. Foley and Freeland, {E. D.} and Steven Gottlieb and Heller, {U. M.} and J. Kim and Kronfeld, {A. S.} and J. Laiho and L. Levkova and Mackenzie, {P. B.} and Neilk, {E. T.} and Oktay, {M. B.} and Qiu, {Si Wei} and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van De Water}, {R. S.} and Ran Zhou",

year = "2013",

language = "English (US)",

volume = "29-July-2013",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "31st International Symposium on Lattice Field Theory, LATTICE 2013 ; Conference date: 29-07-2013 Through 03-08-2013",

}

TY - JOUR

T1 - Kaon semileptonic form factors with Nf = 2+1+1 HISQ fermions and physical light quark masses

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, D.

AU - Van De Water, R. S.

AU - Zhou, Ran

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84976254360&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84976254360&partnerID=8YFLogxK

M3 - Conference Article

AN - SCOPUS:84976254360

SN - 1824-8039

VL - 29-July-2013

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 395

T2 - 31st International Symposium on Lattice Field Theory, LATTICE 2013

Y2 - 29 July 2013 through 3 August 2013

ER -

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

Abstract

ASJC Scopus subject areas

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