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@ARTICLE{Borsanyi:141402,
      author       = {Borsanyi, Sz. and Dürr, S. and Fodor, Z. and Frison, J.
                      and Hoelbling, C. and Katz, S. and Krieg, S. and Kurth, Th.
                      and Lellouch, L. and Lippert, Th. and Portelli, A. and
                      Ramos, A. and Sastre, A. and Szabo, K.},
      title        = {{I}sospin {S}plittings in the {L}ight-{B}aryon {O}ctet from
                      {L}attice {QCD} and {QED}},
      journal      = {Physical review letters},
      volume       = {111},
      number       = {25},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2013-06582},
      pages        = {252001},
      year         = {2013},
      note         = {5 pages, 2 figures},
      abstract     = {While electromagnetic and up-down quark mass difference
                      effects on octet baryon masses are very small, they have
                      important consequences. The stability of the hydrogen atom
                      against beta decay is a prominent example. Here, we include
                      these effects by adding them to valence quarks in a lattice
                      QCD calculation based on Nf=2+1 simulations with five
                      lattice spacings down to 0.054 fm, lattice sizes up to 6 fm,
                      and average up-down quark masses all the way down to their
                      physical value. This allows us to gain control over all
                      systematic errors, except for the one associated with
                      neglecting electromagnetism in the sea. We compute the octet
                      baryon isomultiplet mass splittings, as well as the
                      individual contributions from electromagnetism and the
                      up-down quark mass difference. Our results for the total
                      splittings are in good agreement with experiment.},
      cin          = {JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {411 - Computational Science and Mathematical Methods
                      (POF2-411)},
      pid          = {G:(DE-HGF)POF2-411},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000328883700001},
      doi          = {10.1103/PhysRevLett.111.252001},
      url          = {https://juser.fz-juelich.de/record/141402},
}