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. 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, 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

Department of Physics

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

1 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	Unknown Journal
Volume	29-July-2013
State	Published - 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. 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].

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, John W; Levkova, L.; Mackenzie, P. B.; Neilk, E. T.; Oktay, M. B.; Qiu, Si Wei; Simone, J. N.; Sugar, R.; Toussaint, D.; Van De Water, R. S.; Zhou, Ran.

In: Unknown Journal, Vol. 29-July-2013, 395, 2013.

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

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, JW, 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', Unknown Journal, vol. 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, John W ; Levkova, L. ; Mackenzie, P. B. ; Neilk, E. T. ; Oktay, M. B. ; Qiu, Si Wei ; Simone, J. N. ; Sugar, R. ; Toussaint, 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: Unknown Journal. 2013 ; Vol. 29-July-2013.

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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 Laiho, {John W} 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 = "Nuclear Physics A",

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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, John W

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.

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M3 - Article

AN - SCOPUS:84976254360

VL - 29-July-2013

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

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