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Uncertainties in coupling constant unification
Open accessAbstract
The status of coupling constant unification in the standard model and its supersymmetric extension are discussed. Uncertainties associated with the input coupling constants, ${\mathit{m}}_{\mathit{t}}$, threshold corrections at the low and high scales, and possible nonrenormalizable operators are parametrized and estimated. A simple parametrization of a general supersymmetric new particle spectrum is given. It is shown that an effective scale ${\mathit{M}}_{\mathrm{SUSY}}$ can be defined, but for a realistic spectrum it may differ considerably from the typical new particle masses. The implications of the lower (higher) values of ${\mathrm{\ensuremath{\alpha}}}_{\mathit{s}}$(${\mathit{M}}_{\mathit{Z}}$) suggested by low-energy (Z-pole) experiments are discussed.
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Citations
Cited by
Study of constrained minimal supersymmetry
Kane, G. L., Kolda, C., Roszkowski, L., & Wells, J. D. (1994) · Physical Review D · doi:10.1103/physrevd.49.6173 · Cited by 606
Wells, J. D. (2005) · Physical Review D · doi:10.1103/physrevd.71.015013 · Cited by 300
Cirigliano, D., de Vega, H. J., & Sanchez, N. G. (2005) · Physical Review D · doi:10.1103/physrevd.71.103518 · Cited by 24
Metadata
- Authors
- Langacker, P., & Polonsky, N.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 1993-05-01
- Volume
- 47
- Issue
- 9
- Pages
- 4028-4045
- ISSN
- 0556-2821 (ISSN-L)
- OpenAlex
- W2000702155
- Cited by
- 320
- References
- 0
- FWCI
- 34.46
- Type
- journal article
- Language
- en
- Open access
- green
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- Langacker, P., & Polonsky, N. (1993). Uncertainties in coupling constant unification. Physical Review D. https://doi.org/10.1103/physrevd.47.4028
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