Chiral logs with staggered fermions

C. Aubin, C. Bernard, C. DeTar, Steven Gottlieb, Urs M. Heller, K. Orginos, R. Sugar, William D Toussaint

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We compute chiral logarithms in the presence of "taste" symmetry breaking of staggered fermions. The lagrangian of Lee and Sharpe is generalized and then used to calculate the logs in π and K masses. We correct an error in Ref. [1]. MILC data with three light dynamical flavors can be well fit by our formulas. However, two new chiral parameters, which describe O(a2) hairpin diagrams for taste-nonsinglet mesons, enter in the fits. To obtain precise results for the physical O(p4) coefficients, these new parameters will need to be bounded.

Original languageEnglish (US)
Pages (from-to)233-235
Number of pages3
JournalNuclear Physics B (Proceedings Supplements)
Volume119
DOIs
StatePublished - May 2003

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taste
fermions
logarithms
broken symmetry
mesons
diagrams
coefficients

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Aubin, C., Bernard, C., DeTar, C., Gottlieb, S., Heller, U. M., Orginos, K., ... Toussaint, W. D. (2003). Chiral logs with staggered fermions. Nuclear Physics B (Proceedings Supplements), 119, 233-235. https://doi.org/10.1016/S0920-5632(03)01511-1

Chiral logs with staggered fermions. / Aubin, C.; Bernard, C.; DeTar, C.; Gottlieb, Steven; Heller, Urs M.; Orginos, K.; Sugar, R.; Toussaint, William D.

In: Nuclear Physics B (Proceedings Supplements), Vol. 119, 05.2003, p. 233-235.

Research output: Contribution to journalArticle

Aubin, C, Bernard, C, DeTar, C, Gottlieb, S, Heller, UM, Orginos, K, Sugar, R & Toussaint, WD 2003, 'Chiral logs with staggered fermions', Nuclear Physics B (Proceedings Supplements), vol. 119, pp. 233-235. https://doi.org/10.1016/S0920-5632(03)01511-1
Aubin C, Bernard C, DeTar C, Gottlieb S, Heller UM, Orginos K et al. Chiral logs with staggered fermions. Nuclear Physics B (Proceedings Supplements). 2003 May;119:233-235. https://doi.org/10.1016/S0920-5632(03)01511-1
Aubin, C. ; Bernard, C. ; DeTar, C. ; Gottlieb, Steven ; Heller, Urs M. ; Orginos, K. ; Sugar, R. ; Toussaint, William D. / Chiral logs with staggered fermions. In: Nuclear Physics B (Proceedings Supplements). 2003 ; Vol. 119. pp. 233-235.
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