Journal Article

FZJ-2020-03861

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Electromagnetic contribution to $Σ-Λ$ mixing using lattice $QCD + QED$

Kordov, Z. R. ; Horsley, R. ; Nakamura, Y. ; Perlt, H. ; Rakow, P. E. L. ; Schierholz, G. ; Stüben, H. ; Young, R. D. ; Zanotti, J. M.

2020
Inst.812068 Melville, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevD.101.034517

Abstract: Mixing in the $Σ^0–Λ^0$ system is a direct consequence of broken isospin symmetry and is a measure of both isospin-symmetry breaking as well as general SU(3)-flavor symmetry breaking. In this work we present a new scheme for calculating the extent of $Σ^0–Λ^0$ mixing using simulations in lattice $QCD+QED$ and perform several extrapolations that compare well with various past determinations. Our scheme allows us to easily contrast the QCD-only mixing case with the full $QCD+QED$ mixing.

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Research Program(s):

1. Axion and electric dipole moment of the nucleon (jikp05_20181101) (jikp05_20181101)

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

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