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Title: Finite-volume effects and the electromagnetic contributions to kaon and pion masses

We report on the MILC Collaboration calculation of electromagnetic effects on light pseudoscalar mesons. The simulations employ asqtad staggered dynamical quarks in QCD plus quenched photons, with lattice spacings varying from 0.12 to 0.06 fm. Finite volume corrections for the MILC realization of lattice electrodynamics have been calculated in chiral perturbation theory and applied to the lattice data. These corrections differ from those calculated by Hayakawa and Uno because our treatment of zero modes differs from theirs. Updated results for the corrections to "Dashen's theorem" are presented.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [4] ;  [6] ;  [7] ;  [3] ;  [8] ;  [4] ;  [9] ;  [10] ;  [6] ;  [11] ;  [12] ;  [12]
  1. Bhubaneswar, NISER
  2. Iowa U.
  3. Washington U., St. Louis
  4. Utah U.
  5. Art Inst. of Chicago
  6. Indiana U.
  7. APS, New York
  8. Syracuse U.
  9. Argonne
  10. UC, Santa Barbara
  11. Arizona U.
  12. Fermilab
Publication Date:
OSTI Identifier:
1326606
Report Number(s):
arXiv:1409.7139; FERMILAB-CONF-14-573-T
1318949
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Journal Name: PoS; Journal Volume: LATTICE2014; Conference: 32nd International Symposium on Lattice Field Theory, Brookhaven, NY, USA, 06/23-06/28/2014
Research Org:
Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
MILC
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS