CERN Accelerating science

Article
Report number	arXiv:1512.09054
Title	Calculation of the hadronic vacuum polarization disconnected contribution to the muon anomalous magnetic moment
Author(s)	Blum, T. (Connecticut U.) ; Boyle, P.A. (Edinburgh U.) ; Izubuchi, T. (Brookhaven Natl. Lab. ; RIKEN BNL) ; Jin, L. (Columbia U.) ; Jüttner, A. (U. Southampton (main)) ; Lehner, C. (Brookhaven) ; Maltman, K. (Adelaide U. ; York U., Canada) ; Marinkovic, M. (CERN ; Geneva U.) ; Portelli, A. (Edinburgh U. ; U. Southampton (main)) ; Spraggs, M. (U. Southampton (main))
Publication	2016-06-08
Imprint	30 Dec 2015
Number of pages	6
Note	8 pages, 13 figures
In:	Phys. Rev. Lett. 116 (2016) 232002
DOI	10.1103/PhysRevLett.116.232002
Subject category	Particle Physics - Lattice ; Particle Physics - Phenomenology ; Particle Physics - Lattice
Abstract	We report the first lattice QCD calculation of the hadronic vacuum polarization disconnected contribution to the muon anomalous magnetic moment at physical pion mass. The calculation uses a refined noise-reduction technique which enabled the control of statistical uncertainties at the desired level with modest computational effort. Measurements were performed on the $48^3 \times 96$ physical-pion-mass lattice generated by the RBC and UKQCD collaborations. We find $a_\mu^{\rm HVP (LO) DISC} = -9.6(3.3)(2.3)\times 10^{-10}$, where the first error is statistical and the second systematic.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2016-2025 The Author(s) (License: CC-BY-3.0)

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