Constraining walking and custodial technicolor

Roshan Foadi; Mads Toudal Frandsen; Francesco Sannino

doi:10.1103/PhysRevD.77.097702

Constraining walking and custodial technicolor

Roshan Foadi, Mads Toudal Frandsen, Francesco Sannino

31 Citationer (Scopus)

Abstract

Weshow how to constrain the physical spectrum of walking technicolormodels via precision measurements and modified Weinberg sum rules. Wealso study models possessing a custodial symmetry for the Sparameter at the effective Lagrangian level-custodial technicolor-and argue that thesemodels cannot emerge from walking-type dynamics. We suggest that itis possible to have a very light spin-one axial (vector)boson. However, in the walking dynamics the associated vector bosonis heavy while it is degenerate with the axial incustodial technicolor
Udgivelsesdato: 19 May

Originalsprog	Engelsk
Tidsskrift	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Vol/bind	77
Udgave nummer	9
Sider (fra-til)	097702
ISSN	1550-7998
DOI	https://doi.org/10.1103/PhysRevD.77.097702
Status	Udgivet - 2008

Adgang til dokumentet

10.1103/PhysRevD.77.097702

Citationsformater

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AB - We show how to constrain the physical spectrum of walking technicolor models via precision measurements and modified Weinberg sum rules. We also study models possessing a custodial symmetry for the S parameter at the effective Lagrangian level-custodial technicolor-and argue that these models cannot emerge from walking-type dynamics. We suggest that it is possible to have a very light spin-one axial (vector) boson. However, in the walking dynamics the associated vector boson is heavy while it is degenerate with the axial in custodial technicolor Udgivelsesdato: 19 May

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