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

E. Gámiz; A. Bazavov; C. Bernard; C. DeTar; D. Du; A. X. El-Khadra; E. D. Freeland; Steven Gottlieb; U. M. Heller; J. Komijani; A. S. Kronfeld; J. Laiho; P. B. Mackenzie; E. T. Neil; T. Primer; J. N. Simone; R. Sugar; D. Toussaint; R. S. Van De Water; Ran Zhou

Kaon semileptonic decays with N_f = 2+1+1 HISQ fermions and physical light-quark masses

E. Gámiz, A. Bazavov, C. Bernard, C. DeTar, D. Du, A. X. El-Khadra, E. D. Freeland, Steven Gottlieb, U. M. Heller, J. Komijani, A. S. Kronfeld, J. Laiho, P. B. Mackenzie, E. T. Neil, T. Primer, J. N. Simone, R. Sugar, D. Toussaint, R. S. Van De Water, Ran Zhou

Department of Physics

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

Abstract

We discuss the reduction of errors in the calculation of the form factor f ₊ ^Kπ (0) with HISQ fermions on the N_f = 2+1+1 MILC configurations from increased statistics on some key ensembles, new data on ensembles with lattice spacings down to 0:042 fm and the study of finite-volume effects within staggered ChPT. We also study the implications for the unitarity of the CKM matrix in the first row and for current tensions with leptonic determinations of |V_us|.

Original language	English (US)
Journal	Proceedings of Science
Volume	Part F128557
State	Published - 2016
Event	34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 - Southampton, United Kingdom Duration: Jul 24 2016 → Jul 30 2016

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Gámiz, E., Bazavov, A., Bernard, C., DeTar, C., Du, D., El-Khadra, A. X., Freeland, E. D., Gottlieb, S., Heller, U. M., Komijani, J., Kronfeld, A. S., Laiho, J., Mackenzie, P. B., Neil, E. T., Primer, T., Simone, J. N., Sugar, R., Toussaint, D., Van De Water, R. S., & Zhou, R. (2016). Kaon semileptonic decays with N_f = 2+1+1 HISQ fermions and physical light-quark masses. Proceedings of Science, Part F128557.

Gámiz, E, Bazavov, A, Bernard, C, DeTar, C, Du, D, El-Khadra, AX, Freeland, ED, Gottlieb, S, Heller, UM, Komijani, J, Kronfeld, AS, Laiho, J, Mackenzie, PB, Neil, ET, Primer, T, Simone, JN, Sugar, R, Toussaint, D, Van De Water, RS & Zhou, R 2016, 'Kaon semileptonic decays with N_f = 2+1+1 HISQ fermions and physical light-quark masses', Proceedings of Science, vol. Part F128557.

@article{d4c83ccc7bff44759b1ecf7510d25c38,

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

abstract = "We discuss the reduction of errors in the calculation of the form factor f + Kπ (0) with HISQ fermions on the Nf = 2+1+1 MILC configurations from increased statistics on some key ensembles, new data on ensembles with lattice spacings down to 0:042 fm and the study of finite-volume effects within staggered ChPT. We also study the implications for the unitarity of the CKM matrix in the first row and for current tensions with leptonic determinations of |Vus|.",

author = "E. G{\'a}miz and A. Bazavov and C. Bernard and C. DeTar and D. Du and El-Khadra, {A. X.} and Freeland, {E. D.} and Steven Gottlieb and Heller, {U. M.} and J. Komijani and Kronfeld, {A. S.} and J. Laiho and Mackenzie, {P. B.} and Neil, {E. T.} and T. Primer and Simone, {J. N.} and R. Sugar and D. Toussaint and {Van De Water}, {R. S.} and Ran Zhou",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 ; Conference date: 24-07-2016 Through 30-07-2016",

year = "2016",

language = "English (US)",

volume = "Part F128557",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

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

AU - Gámiz, E.

AU - Bazavov, A.

AU - Bernard, C.

AU - DeTar, C.

AU - Du, D.

AU - El-Khadra, A. X.

AU - Freeland, E. D.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Komijani, J.

AU - Kronfeld, A. S.

AU - Laiho, J.

AU - Mackenzie, P. B.

AU - Neil, E. T.

AU - Primer, T.

AU - Simone, J. N.

AU - Sugar, R.

AU - Toussaint, D.

AU - Van De Water, R. S.

AU - Zhou, Ran

PY - 2016

Y1 - 2016

N2 - We discuss the reduction of errors in the calculation of the form factor f + Kπ (0) with HISQ fermions on the Nf = 2+1+1 MILC configurations from increased statistics on some key ensembles, new data on ensembles with lattice spacings down to 0:042 fm and the study of finite-volume effects within staggered ChPT. We also study the implications for the unitarity of the CKM matrix in the first row and for current tensions with leptonic determinations of |Vus|.

AB - We discuss the reduction of errors in the calculation of the form factor f + Kπ (0) with HISQ fermions on the Nf = 2+1+1 MILC configurations from increased statistics on some key ensembles, new data on ensembles with lattice spacings down to 0:042 fm and the study of finite-volume effects within staggered ChPT. We also study the implications for the unitarity of the CKM matrix in the first row and for current tensions with leptonic determinations of |Vus|.

UR - http://www.scopus.com/inward/record.url?scp=85025832059&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85025832059&partnerID=8YFLogxK

M3 - Conference Article

AN - SCOPUS:85025832059

SN - 1824-8039

VL - Part F128557

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016

Y2 - 24 July 2016 through 30 July 2016

ER -

Kaon semileptonic decays with N_f = 2+1+1 HISQ fermions and physical light-quark masses

Abstract

ASJC Scopus subject areas

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