PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - QCD in searches for physics beyond the Standard Model
Disconnected contribution to the LO HVP term of muon g-2 from ETMC
C. Alexandrou, S. Bacchio*, P. Dimopoulos, J. Finkenrath, R. Frezzotti, G. Gagliardi, M. Garofalo, K. Hadjiyiannakou, B. Kostrzewa, K. Jansen, V. Lubicz, M. Petschlies, F. Sanfilippo, S. Simula, C. Urbach and U. Wenger
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Pre-published on: January 10, 2023
Published on: April 06, 2023
Abstract
We present a lattice determination of the disconnected contributions to the leading-order hadronic vacuum polarization (HVP) to the muon anomalous magnetic moment in the so-called short and intermediate time-distance windows. We employ gauge ensembles produced by the Extended Twisted Mass Collaboration (ETMC) with $N_f = 2 + 1 + 1$ flavors of Wilson twisted-mass clover-improved quarks with masses approximately tuned to their physical value. We take the continuum limit employing three lattice spacings at a.bout 0.08, 0.07 and 0.06 fm.
DOI: https://doi.org/10.22323/1.430.0303
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