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Electromagnetic contribution to $\Sigma$-$\Lambda$ mixing using lattice QCD+QED
- Source :
- Phys. Rev. D 101, 034517 (2020)
- Publication Year :
- 2019
-
Abstract
- Mixing in the $\Sigma^0$-$\Lambda^0$ system is a direct consequence of broken isospin symmetry and is a measure of both isospin-symmetry breaking as well as general SU(3)-flavour symmetry breaking. In this work we present a new scheme for calculating the extent of $\Sigma^0$-$\Lambda^0$ 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.<br />Comment: 9 pages, 3 figures
- Subjects :
- High Energy Physics - Lattice
High Energy Physics - Phenomenology
Nuclear Theory
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 101, 034517 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.1911.02186
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.101.034517