Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Type: Journal article
Title: Isospin splittings of meson and baryon masses from three-flavor lattice QCD + QED
Author: Horsley, R.
Nakamura, Y.
Perlt, H.
Pleiter, D.
Rakow, P.
Schierholz, G.
Schiller, A.
Stokes, R.
Stüben, H.
Young, R.
Zanotti, J.
Citation: Journal of Physics G: Nuclear and Particle Physics, 2016; 43(10):1-13
Publisher: IOP Publishing
Issue Date: 2016
ISSN: 0954-3899
Statement of
R Horsley, Y Nakamura, H Perlt, D Pleiter, P E L Rakow, G Schierholz, A Schiller, R Stokes, H Stüben, R D Young
Abstract: Lattice QCD simulations are now reaching a precision where isospin breaking effects become important. Previously, we have developed a program to systematically investigate the pattern of flavor symmetry beaking within QCD and successfully applied it to meson and baryon masses involving up, down and strange quarks. In this Letter we extend the calculations to QCD + QED and present our first results on isospin splittings in the pseudoscalar meson and baryon octets. In particular, we obtain the nucleon mass difference of Mn - Mp = 1.35(18)(8)MeV and the electromagnetic contribution to the pion splitting Mπ+ Mπ4.60(20)MeV. Further we report first determination of the separation between strong and electromagnetic contributions in the MS scheme.
Rights: © 2016 IOP Publishing Ltd.
DOI: 10.1088/0954-3899/43/10/10LT02
Grant ID:
Appears in Collections:Aurora harvest 7
Physics publications

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.