### Abstract

We describe a computation of the contribution to the anomalous magnetic moment of the muon from the disconnected part of the hadronic vacuum polarization. We use the highly-improved staggered quark (HISQ) formulation for the current density with gauge configurations generated with four flavors of HISQ sea quarks. The computation is performed by stochastic estimation of the current density using the truncated solver method combined with deflation of low-modes. The parameters are tuned to minimize the computational cost for a given target uncertainty in the current-current correlation function. The calculation presented here is carried out on a single gauge-field ensemble of size 32^{3} ×48 with an approximate lattice spacing of ∼ 0.15 fm and with physical sea-quark masses. We describe the methodology and the analysis procedure.

Original language | English (US) |
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Article number | 322 |

Journal | Proceedings of Science |

Volume | 334 |

State | Published - Jan 1 2018 |

Event | 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States Duration: Jul 22 2018 → Jul 28 2018 |

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### ASJC Scopus subject areas

- General

### Cite this

*Proceedings of Science*,

*334*, [322].

**Disconnected hadronic vacuum polarization contribution to the muon g-2 with HISQ.** / Yamamoto, Shuhei; DeTar, Carleton; El-Khadra, Aida X; McNeile, Craig; Van De Water, Ruth S.; Vaquero, Alejandro.

Research output: Contribution to journal › Conference article

*Proceedings of Science*, vol. 334, 322.

}

TY - JOUR

T1 - Disconnected hadronic vacuum polarization contribution to the muon g-2 with HISQ

AU - Yamamoto, Shuhei

AU - DeTar, Carleton

AU - El-Khadra, Aida X

AU - McNeile, Craig

AU - Van De Water, Ruth S.

AU - Vaquero, Alejandro

PY - 2018/1/1

Y1 - 2018/1/1

N2 - We describe a computation of the contribution to the anomalous magnetic moment of the muon from the disconnected part of the hadronic vacuum polarization. We use the highly-improved staggered quark (HISQ) formulation for the current density with gauge configurations generated with four flavors of HISQ sea quarks. The computation is performed by stochastic estimation of the current density using the truncated solver method combined with deflation of low-modes. The parameters are tuned to minimize the computational cost for a given target uncertainty in the current-current correlation function. The calculation presented here is carried out on a single gauge-field ensemble of size 323 ×48 with an approximate lattice spacing of ∼ 0.15 fm and with physical sea-quark masses. We describe the methodology and the analysis procedure.

AB - We describe a computation of the contribution to the anomalous magnetic moment of the muon from the disconnected part of the hadronic vacuum polarization. We use the highly-improved staggered quark (HISQ) formulation for the current density with gauge configurations generated with four flavors of HISQ sea quarks. The computation is performed by stochastic estimation of the current density using the truncated solver method combined with deflation of low-modes. The parameters are tuned to minimize the computational cost for a given target uncertainty in the current-current correlation function. The calculation presented here is carried out on a single gauge-field ensemble of size 323 ×48 with an approximate lattice spacing of ∼ 0.15 fm and with physical sea-quark masses. We describe the methodology and the analysis procedure.

UR - http://www.scopus.com/inward/record.url?scp=85069967899&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85069967899&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85069967899

VL - 334

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

M1 - 322

ER -