Implications for supersymmetry of the reported deviations from the standard model for {Gamma}({ital Z}{r_arrow}{bar {ital bb}}) and {alpha}{sub {ital s}}({ital m}{sup 2}{sub {ital Z}})
- SLAC, MS 81, P.O. Box 4349, Stanford, California 94309 (United States)
If the reported excess (over the standard model prediction) for {ital Z}{r_arrow}{bar {ital bb}} from LEP persists, and is explained by supersymmetric particles in loops, then we show that (1) a superpartner (chargino and/or stop) will be detected at LEP2, and probably at intermediate energy upgrades, (2) the basic parameter tan{beta} is at its lower perturbative limit, (3) BR({ital t}{r_arrow}{tilde {ital t}}{sub 1}+{tilde {chi}}{sup 0}) is at or above 0.4, (4) the upper limit on {ital m}{sub {ital h}} is considerably reduced, and (5) several important consequences arise for the form of a unified supersymmetric theory. Our analysis is done in terms of a general weak scale Lagrangian and does not depend on assumptions about SUSY breaking. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 278803
- Journal Information:
- Physical Review Letters, Vol. 76, Issue 6; Other Information: PBD: Feb 1996
- Country of Publication:
- United States
- Language:
- English
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