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

Conference · Thu Sep 25 00:00:00 EDT 2014 · PoS

OSTI ID:1326606

Basak, Subhasish ^[1]; Bazavov, Alexei ^[2]; Bernard, Claude ^[3]; Detar, Carleton ^[4]; Freeland, Elizabeth ^[5]; Foley, Justin ^[4]; Gottlieb, Steven ^[6]; Heller, Urs M. ^[7]; Komijani, Javad ^[3]; Laiho, Jack ^[8]; Levkova, Ludmila ^[4]; Osborn, James ^[9]; Sugar, Robert ^[10]; Torok, Aaron ^[6]; Toussaint, Doug ^[11]; Van de Water, Ruth S. ^[12]; Zhou, Ran ^[12]

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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

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.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: MILC
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1326606
• Report Number(s): arXiv:1409.7139; FERMILAB-CONF-14-573-T; 1318949
• Journal Information: PoS, Vol. LATTICE2014; Conference: 32nd International Symposium on Lattice Field Theory, Brookhaven, NY, USA, 06/23-06/28/2014
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS