Constraints on SU2×U1 breaking by vacuum misalignment

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170 Scopus citations


We examine a proposal of Georgi and Kaplan for raising the scale of technicolor. In scalarless vectorlike technicolor models with massless techni-fermions we show that the proposal does not work. We present a simple model which realizes the Georgi-Kaplan scenario with a partially chiral technicolor group. The model requires fine tuning of the ratio of two weak coupling constants with an accuracy of O(10-4). We argue that the fine-tuning problem is quite general.

Original languageEnglish (US)
Pages (from-to)125-130
Number of pages6
JournalNuclear Physics, Section B
Issue number1
StatePublished - Aug 27 1984
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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