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Muons – a Magnetic Mystery

Jülich, 7 April 2021 – For around 20 years, there has been a discrepancy between the theoretical predictions and experimental measurements of the muon magnetic field, indicating a possible error in our current physical understanding. A new calculation method with unprecedented precision has now taken the theoretical prediction closer to the previous experimental value. For the most part, the work involving scientists from Forschungszentrum Jülich was conducted using Jülich’s supercomputers. The research findings have now been published in the renowned journal Nature. They are particularly relevant, since the first results of a new US experiment aiming to determine the muon magnetic field with greater precision will be announced on 7 April.

Passt das magnetische Moment des Myons in unsere physikalische Vorstellung über die Welt? Superrechner bringen neue Erkenntnisse in das alte Rätsel.Passt das magnetische Moment des Myons in unsere physikalische Vorstellung über die Welt? Jülicher Superrechner bringen neue Erkenntnisse in das alte Rätsel.
Copyright: Uni Wuppertal / thavis gmbh

Original publication: Leading hadronic contribution to the muon magnetic moment from lattice QCD, Sz. Borsanyi, Z. Fodor, J. N. Guenther, C. Hoelbling, S. D. Katz, L. Lellouch, T. Lippert, K. Miura, L. Parato, K. K. Szabo, F. Stokes, B. C. Toth, Cs. Torok, L. Varnhorst, Nature April 2021,
DOI: 10.1038/s41586-021-03418-1

Further Information:

Jülich Supercomputing Centre (JSC)

Contact:

Prof. Kalman Szabo
Head of Helmholtz research group "Nuclear and particle physics"
Jülich Supercomputing Centre (JSC)
Tel.: +49 2461 61-96471
E-Mail: k.szabo@fz-juelich.de

Prof. Thomas Lippert
Director Jülich Supercomputing Centre (JSC)
Tel.: +49 2461 61-6402
E-Mail: th.lippert@fz-juelich.de

Press contact:

Dr. Regine Panknin
Pressereferentin Forschungszentrum Jülich
Tel.: +49 2461 61-9054
E-Mail: r.panknin@fz-juelich.de

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