Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses

S. Basaka; A. Bazavov; C. Bernard; C. DeTar; E. Freeland; Walter Freeman; J. Foley; Steven Gottlieb; U. M. Heller; J. E. Hetrick; John W Laiho; L. Levkov; M. Oktay; J. Osborn; R. L. Sugar; A. Torok; D. Toussaint; R. S. Van De Water; R. Zhou

Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses

S. Basaka, A. Bazavov, C. Bernard, C. DeTar, E. Freeland, Walter Freeman, J. Foley, Steven Gottlieb, U. M. Heller, J. E. Hetrick, John W Laiho, L. Levkov, M. Oktay, J. Osborn, R. L. Sugar, A. Torok, D. Toussaint, R. S. Van De Water, R. Zhou

Research output: Contribution to journal › Article

Abstract

We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary from 0.12 to 0.06 fm. The masses are fit with staggered chiral perturbation theory including NLO electromagnetic terms. We attempt to extract the fit parameters for the electromagnetic contributions, while taking into account the finite volume effects, and extrapolate them to the physical limit.

Original language	English (US)
Article number	119
Journal	Proceedings of Science
Volume	Part F130497
State	Published - 2012
Externally published	Yes

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Basaka, S., Bazavov, A., Bernard, C., DeTar, C., Freeland, E., Freeman, W., Foley, J., Gottlieb, S., Heller, U. M., Hetrick, J. E., Laiho, J. W., Levkov, L., Oktay, M., Osborn, J., Sugar, R. L., Torok, A., Toussaint, D., Van De Water, R. S., & Zhou, R. (2012). Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses. Proceedings of Science, Part F130497, [119].

Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses. / Basaka, S.; Bazavov, A.; Bernard, C.; DeTar, C.; Freeland, E.; Freeman, Walter; Foley, J.; Gottlieb, Steven; Heller, U. M.; Hetrick, J. E.; Laiho, John W; Levkov, L.; Oktay, M.; Osborn, J.; Sugar, R. L.; Torok, A.; Toussaint, D.; Van De Water, R. S.; Zhou, R.

In: Proceedings of Science, Vol. Part F130497, 119, 2012.

Research output: Contribution to journal › Article

Basaka, S. ; Bazavov, A. ; Bernard, C. ; DeTar, C. ; Freeland, E. ; Freeman, Walter ; Foley, J. ; Gottlieb, Steven ; Heller, U. M. ; Hetrick, J. E. ; Laiho, John W ; Levkov, L. ; Oktay, M. ; Osborn, J. ; Sugar, R. L. ; Torok, A. ; Toussaint, D. ; Van De Water, R. S. ; Zhou, R. / Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses. In: Proceedings of Science. 2012 ; Vol. Part F130497.

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abstract = "We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary from 0.12 to 0.06 fm. The masses are fit with staggered chiral perturbation theory including NLO electromagnetic terms. We attempt to extract the fit parameters for the electromagnetic contributions, while taking into account the finite volume effects, and extrapolate them to the physical limit.",

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AU - Basaka, S.

AU - Bazavov, A.

AU - Bernard, C.

AU - DeTar, C.

AU - Freeland, E.

AU - Freeman, Walter

AU - Foley, J.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Hetrick, J. E.

AU - Laiho, John W

AU - Levkov, L.

AU - Oktay, M.

AU - Osborn, J.

AU - Sugar, R. L.

AU - Torok, A.

AU - Toussaint, D.

AU - Van De Water, R. S.

AU - Zhou, R.

PY - 2012

Y1 - 2012

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AB - We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary from 0.12 to 0.06 fm. The masses are fit with staggered chiral perturbation theory including NLO electromagnetic terms. We attempt to extract the fit parameters for the electromagnetic contributions, while taking into account the finite volume effects, and extrapolate them to the physical limit.

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Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses

Abstract

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