Journal Article

FZJ-2021-04424

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png High-precision determination of the K3 radiative corrections

Seng, C.-Y. ; Galviz, D. ; Gorchtein, M. ; Meißner, U.-G. (Corresponding author)FZJ*

2021
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/29106  doi:10.1016/j.physletb.2021.136522

Abstract: We report a high-precision calculation of the Standard Model electroweak radiative corrections in the decay as a part of the combined theory effort to understand the existing anomaly in the determinations of . Our new analysis features a chiral resummation of the large infrared-singular terms in the radiative corrections and a well-under-control strong interaction uncertainty based on the most recent lattice QCD inputs. While being consistent with the current state-of-the-art results obtained from chiral perturbation theory, we reduce the existing theory uncertainty from to . Our result suggests that the Standard Model electroweak effects cannot account for the anomaly.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)

Appears in the scientific report 2021

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Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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