The University of Southampton
University of Southampton Institutional Repository

A lattice calculation of the hadronic vacuum polarization contribution to (g - 2)μ

A lattice calculation of the hadronic vacuum polarization contribution to (g - 2)μ
A lattice calculation of the hadronic vacuum polarization contribution to (g - 2)μ

We present results of calculations of the hadronic vacuum polarisation contribution to the muon anomalous magnetic moment. Specifically, we focus on controlling the infrared regime of the vacuum polarisation function. Our results are corrected for finite-size effects by combining the Gounaris-Sakurai parameterisation of the timelike pion form factor with the Lüscher formalism. The impact of quark-disconnected diagrams and the precision of the scale determination is discussed and included in our final result in two-flavour QCD, which carries an overall uncertainty of 6%. We present preliminary results computed on ensembles with Nf = 2 + 1 dynamical flavours and discuss how the long-distance contribution can be accurately constrained by a dedicated spectrum calculation in the iso-vector channel.

2101-6275
1-8
DellaMorte, M.
5e845829-aba2-4191-adf0-499bc1f161ff
Francis, A.
43f39f29-235e-46e6-ae02-89ff74be0a34
Gérardin, A.
38e9b66d-88c1-4784-a724-84fcc440decb
Gülpers, V.
ea31c3b1-2815-40ae-ae8f-3e3b4e742a49
Herdoíza, G.
09bb1907-c6c3-4019-97bb-30268d49697e
Von Hippel, G.
e95a5643-b65c-444f-8f73-87535eef9dc2
Horch, H.
b208fa04-62b0-4015-939f-ddc4b9aea487
Jäger, B.
60aa7016-227c-4217-88e8-a0e9fbff4a26
Meyer, H.B.
ce8138b0-aa92-430a-be24-45aff9431371
Nyffeler, A.
24825619-e9fa-4fcf-90ed-250c0e25cb7c
Wittig, H.
bb18ab67-aedf-4518-963e-9421841496ab
DellaMorte, M.
5e845829-aba2-4191-adf0-499bc1f161ff
Francis, A.
43f39f29-235e-46e6-ae02-89ff74be0a34
Gérardin, A.
38e9b66d-88c1-4784-a724-84fcc440decb
Gülpers, V.
ea31c3b1-2815-40ae-ae8f-3e3b4e742a49
Herdoíza, G.
09bb1907-c6c3-4019-97bb-30268d49697e
Von Hippel, G.
e95a5643-b65c-444f-8f73-87535eef9dc2
Horch, H.
b208fa04-62b0-4015-939f-ddc4b9aea487
Jäger, B.
60aa7016-227c-4217-88e8-a0e9fbff4a26
Meyer, H.B.
ce8138b0-aa92-430a-be24-45aff9431371
Nyffeler, A.
24825619-e9fa-4fcf-90ed-250c0e25cb7c
Wittig, H.
bb18ab67-aedf-4518-963e-9421841496ab

DellaMorte, M., Francis, A., Gérardin, A., Gülpers, V., Herdoíza, G., Von Hippel, G., Horch, H., Jäger, B., Meyer, H.B., Nyffeler, A. and Wittig, H. (2018) A lattice calculation of the hadronic vacuum polarization contribution to (g - 2)μ. EPJ Web of Conferences, 175, 1-8, [06031]. (doi:10.1051/epjconf/201817506031).

Record type: Article

Abstract

We present results of calculations of the hadronic vacuum polarisation contribution to the muon anomalous magnetic moment. Specifically, we focus on controlling the infrared regime of the vacuum polarisation function. Our results are corrected for finite-size effects by combining the Gounaris-Sakurai parameterisation of the timelike pion form factor with the Lüscher formalism. The impact of quark-disconnected diagrams and the precision of the scale determination is discussed and included in our final result in two-flavour QCD, which carries an overall uncertainty of 6%. We present preliminary results computed on ensembles with Nf = 2 + 1 dynamical flavours and discuss how the long-distance contribution can be accurately constrained by a dedicated spectrum calculation in the iso-vector channel.

Text
epjconf_lattice2018_06031 - Version of Record
Available under License Creative Commons Attribution.
Download (606kB)

More information

Accepted/In Press date: 1 April 2016
e-pub ahead of print date: 26 March 2018

Identifiers

Local EPrints ID: 419939
URI: http://eprints.soton.ac.uk/id/eprint/419939
ISSN: 2101-6275
PURE UUID: ab935ab6-3257-4e62-b63f-0dbe02c2dac6

Catalogue record

Date deposited: 24 Apr 2018 16:30
Last modified: 15 Mar 2024 19:36

Export record

Altmetrics

Contributors

Author: M. DellaMorte
Author: A. Francis
Author: A. Gérardin
Author: V. Gülpers
Author: G. Herdoíza
Author: G. Von Hippel
Author: H. Horch
Author: B. Jäger
Author: H.B. Meyer
Author: A. Nyffeler
Author: H. Wittig

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×