Probing technicolor theories with staggered fermions

Zoltán Fodor, Kieran Holland, Julius Kuti, Dániel Nógrádi, Chris Schroeder

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

One exciting possibility of new physics beyond the Standard Model is that the fundamental Higgs sector is replaced by a strongly-interacting gauge theory, known as technicolor. A viable theory must break chiral symmetry dynamically, like in QCD, to generate Goldstone bosons which become the longitudinal components of the W± and Z. By measuring the eigenvalues of the Dirac operator, one can determine if chiral symmetry is in fact spontaneously broken. We simulate SU(3) gauge theory with ns = 2 and 3 staggered flavors in the fundamental representation, corresponding to Nf = 8 and 12 flavors in the continuum limit. Although our first findings show that both theories are consistent with dynamically broken chiral symmetry and QCD-like behavior, flavor breaking effects in the spectrum may require further clarifications before final conclusions can be drawn. We also compare various improved staggered actions, to suppress this potentially large flavor breaking.

Original languageEnglish
JournalProceedings of Science
Volume66
Publication statusPublished - Jan 1 2008
Event26th International Symposium on Lattice Field Theory, LATTICE 2008 - Williamsburg, United States
Duration: Jul 14 2008Jul 19 2008

ASJC Scopus subject areas

  • General

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    Fodor, Z., Holland, K., Kuti, J., Nógrádi, D., & Schroeder, C. (2008). Probing technicolor theories with staggered fermions. Proceedings of Science, 66.