Operator analysis for precision electroweak physics

Grinstein, Benjamin; Wise, Mark B.

doi:10.1016/0370-2693(91)90061-T

Operator analysis for precision electroweak physics

Benjamin Grinstein
(
- Harvard U.
)
,
Mark B. Wise
(
- Caltech
)

Apr, 1991

9 pages

Published in:

Phys.Lett.B 265 (1991) 326-334

Published: 1991

DOI:

10.1016/0370-2693(91)90061-T

Report number:

CALT-68-1720,
HUTP-91-A015

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Abstract: (Elsevier)

The impact of new physics associated with the Higgs sector on precision electroweak physics is examined. We assume that at low energies the degrees of freedom are those of the standard model with minimal particle content (i.e., three generations of quarks and leptons and one Higgs doublet), and that the new physics is very weakly coupled to the quarks and leptons. With these assumptions a general operator analysis reveals that the new physics leaves a characteristic signature in the pattern of corrections to the standard model's contribution to precision electroweak measurements.

electroweak interaction: validity test
validity test: electroweak interaction
electroweak interaction: correction
correction: electroweak interaction
operator: higher-dimensional
effective Lagrangian
symmetry breaking: SU(2)
gauge boson: propagator
renormalization
Higgs particle: heavy

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