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

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

ASJC Scopus subject areas

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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{1d8f1cd9e424458ca340ec50e078ec43,

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 - https://www.scopus.com/pages/publications/85025832059

UR - https://www.scopus.com/pages/publications/85025832059#tab=citedBy

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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