CERN Accelerating science

Article
Report number	arXiv:2301.04972 ; CERN-TH-2023-005
Title	Isospin Mass Differences of the $B$, $D$ and $K$
Author(s)	Rowe, Matthew (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Zwicky, Roman (U. Edinburgh, Higgs Ctr. Theor. Phys. ; CERN)
Publication	2023-06-15
Imprint	2023-01-12
Note	pp17 plus refs and 2 figures
In:	JHEP 2306 (2023) 089
DOI	10.1007/JHEP06(2023)089
Subject category	hep-lat ; Particle Physics - Lattice ; hep-ph ; Particle Physics - Phenomenology
Abstract	We compute the electromagnetic mass difference for the $B$-, $D$- and $K$-mesons using QCD sum rules with double dispersion relations. For the $B$- and $D$-mesons we also compute the linear quark mass correction, whereas for the $K$ the standard soft theorems prove more powerful. The mass differences, which have not previously been computed via a double dispersion, are fully consistent with experiment, albeit with large uncertainties.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: (License: CC-BY-4.0), sponsored by SCOAP³

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