Pion masses in quasiconformal gauge field theories

Preprint number: CP3-Origins-2009-4
Authors: Dennis D. Dietrich (CP3-Origins) and Matti Järvinen (CP3-Origins)
External link: arXiv.org

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We study modifications to Weinberg-like sum rules in quasiconformal gauge field theories. Beyond the two Weinberg sum rules and the oblique S parameter we study the pion mass and the X parameter. Especially, we evaluate the pion mass for walking technicolour theories, in particular also minimal walking technicolour, and find contributions of the order of up to several hundred GeV.