An update of Euclidean windows of the hadronic vacuum polarization

T. Blum; P. A. Boyle; M. Bruno; D. Giusti; V. Gülpers; R. C. Hill; T. Izubuchi; Y. -C. Jang; L. Jin; C. Jung; A. Jüttner; C. Kelly; C. Lehner; N. Matsumoto; R. D. Mawhinney; A. S. Meyer; J. T. Tsang

doi:10.1103/PhysRevD.108.054507

An update of Euclidean windows of the hadronic vacuum polarization

T. Blum, P. A. Boyle, M. Bruno, D. Giusti, V. Gülpers, R. C. Hill, T. Izubuchi, Y. -C. Jang, L. Jin, C. Jung, A. Jüttner, C. Kelly, C. Lehner, N. Matsumoto, R. D. Mawhinney, A. S. Meyer, J. T. Tsang

School of Physics and Astronomy

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

Abstract

We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional subleading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. We find aWμ=235.56(65)(50)×10−10, which is in 3.8σ tension with the recently published dispersive result of aWμ=229.4(1.4)×10−10 [G. Colangelo, A. X. El-Khadra, M. Hoferichter, A. Keshavarzi, C. Lehner, P. Stoffer, and T. Teubner, Phys. Lett. B 833, 137313 (2022)] and in agreement with other recent lattice determinations. We also provide a result for the standard short-distance window. The results reported here are unchanged compared to our presentation at the Edinburgh workshop of the g-2 Theory Initiative in 2022 [C. Lehner, Talk Presented at the 5th Plenary Meeting of the g-2 Theory Initiative in Edinburgh (2022)].

Original language	English
Article number	054507
Pages (from-to)	1-20
Number of pages	20
Journal	Physical Review D, particles, fields, gravitation, and cosmology
Volume	108
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.108.054507
Publication status	Published - 26 Sept 2023

Keywords / Materials (for Non-textual outputs)

hep-lat
hep-ph

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10.1103/PhysRevD.108.054507Licence: Creative Commons: Attribution (CC-BY)

Particle Theory at the Higgs Centre
Ball, R. (Principal Investigator), Boyle, P. (Co-investigator), Del Debbio, L. (Co-investigator), Gardi, E. (Co-investigator), Horsley, R. (Co-investigator), Kennedy, A. (Co-investigator), O'Connell, D. (Co-investigator), Smillie, J. (Co-investigator) & Zwicky, R. (Co-investigator)
STFC
1/10/17 → 30/09/21
Project: Research

Cite this

Blum, T., Boyle, P. A., Bruno, M., Giusti, D., Gülpers, V., Hill, R. C., Izubuchi, T., Jang, Y. .-C., Jin, L., Jung, C., Jüttner, A., Kelly, C., Lehner, C., Matsumoto, N., Mawhinney, R. D., Meyer, A. S., & Tsang, J. T. (2023). An update of Euclidean windows of the hadronic vacuum polarization. Physical Review D, particles, fields, gravitation, and cosmology, 108(5), 1-20. Article 054507. https://doi.org/10.1103/PhysRevD.108.054507

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abstract = "We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional subleading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. We find aWμ=235.56(65)(50)×10−10, which is in 3.8σ tension with the recently published dispersive result of aWμ=229.4(1.4)×10−10 [G. Colangelo, A. X. El-Khadra, M. Hoferichter, A. Keshavarzi, C. Lehner, P. Stoffer, and T. Teubner, Phys. Lett. B 833, 137313 (2022)] and in agreement with other recent lattice determinations. We also provide a result for the standard short-distance window. The results reported here are unchanged compared to our presentation at the Edinburgh workshop of the g-2 Theory Initiative in 2022 [C. Lehner, Talk Presented at the 5th Plenary Meeting of the g-2 Theory Initiative in Edinburgh (2022)].",

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Blum, T, Boyle, PA, Bruno, M, Giusti, D, Gülpers, V , Hill, RC, Izubuchi, T, Jang, Y-C, Jin, L, Jung, C, Jüttner, A, Kelly, C, Lehner, C, Matsumoto, N, Mawhinney, RD, Meyer, AS & Tsang, JT 2023, 'An update of Euclidean windows of the hadronic vacuum polarization', Physical Review D, particles, fields, gravitation, and cosmology, vol. 108, no. 5, 054507, pp. 1-20. https://doi.org/10.1103/PhysRevD.108.054507

TY - JOUR

T1 - An update of Euclidean windows of the hadronic vacuum polarization

AU - Blum, T.

AU - Boyle, P. A.

AU - Bruno, M.

AU - Giusti, D.

AU - Gülpers, V.

AU - Hill, R. C.

AU - Izubuchi, T.

AU - Jang, Y. -C.

AU - Jin, L.

AU - Jung, C.

AU - Jüttner, A.

AU - Kelly, C.

AU - Lehner, C.

AU - Matsumoto, N.

AU - Mawhinney, R. D.

AU - Meyer, A. S.

AU - Tsang, J. T.

N1 - 24 pages, 15 figures

PY - 2023/9/26

Y1 - 2023/9/26

N2 - We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional subleading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. We find aWμ=235.56(65)(50)×10−10, which is in 3.8σ tension with the recently published dispersive result of aWμ=229.4(1.4)×10−10 [G. Colangelo, A. X. El-Khadra, M. Hoferichter, A. Keshavarzi, C. Lehner, P. Stoffer, and T. Teubner, Phys. Lett. B 833, 137313 (2022)] and in agreement with other recent lattice determinations. We also provide a result for the standard short-distance window. The results reported here are unchanged compared to our presentation at the Edinburgh workshop of the g-2 Theory Initiative in 2022 [C. Lehner, Talk Presented at the 5th Plenary Meeting of the g-2 Theory Initiative in Edinburgh (2022)].

AB - We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional subleading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. We find aWμ=235.56(65)(50)×10−10, which is in 3.8σ tension with the recently published dispersive result of aWμ=229.4(1.4)×10−10 [G. Colangelo, A. X. El-Khadra, M. Hoferichter, A. Keshavarzi, C. Lehner, P. Stoffer, and T. Teubner, Phys. Lett. B 833, 137313 (2022)] and in agreement with other recent lattice determinations. We also provide a result for the standard short-distance window. The results reported here are unchanged compared to our presentation at the Edinburgh workshop of the g-2 Theory Initiative in 2022 [C. Lehner, Talk Presented at the 5th Plenary Meeting of the g-2 Theory Initiative in Edinburgh (2022)].

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KW - hep-ph

U2 - 10.1103/PhysRevD.108.054507

DO - 10.1103/PhysRevD.108.054507

M3 - Article

SN - 0556-2821

VL - 108

SP - 1

EP - 20

JO - Physical Review D, particles, fields, gravitation, and cosmology

JF - Physical Review D, particles, fields, gravitation, and cosmology

IS - 5

M1 - 054507

ER -

An update of Euclidean windows of the hadronic vacuum polarization

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Particle Theory at the Higgs Centre

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