Constraints on SU2×U1 breaking by vacuum misalignment

Thomas Banks

doi:10.1016/0550-3213(84)90389-4

Constraints on SU₂×U₁ breaking by vacuum misalignment

Thomas Banks

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170 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	125-130
Number of pages	6
Journal	Nuclear Physics, Section B
Volume	243
Issue number	1
DOIs	https://doi.org/10.1016/0550-3213(84)90389-4
State	Published - Aug 27 1984
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/0550-3213(84)90389-4

Cite this

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title = "Constraints on SU2×U1 breaking by vacuum misalignment",

abstract = "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.",

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AB - 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.

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Constraints on SU₂×U₁ breaking by vacuum misalignment

Abstract

All Science Journal Classification (ASJC) codes

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