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Physics impact of GigaZ by J. Erler; S. Heinemeyer; W. Hollik; G. Weiglein; P.M. Zerwas is a Physics and Astronomy article available to read on EtoBox.

What is Physics impact of GigaZ about?

By running the prospective high-energy e q e y collider TESLA in the GigaZ mode on the Z resonance, experiments can be performed on the basis of more than 10 9 Z events. They will allow the measurement of the effective electroweak mixing angle to an accuracy of d sin 2 u f "1 = 10 y5 . Likewise the W boson mass is expected to be measurable with an error of eff d M f "6 MeV near the W q W y threshold. In this note, we study the accuracy with which the Higgs boson mass can be W determined from loop corrections to these observables in the Standard Model. The comparison with a directly observed Higgs boson may be used to constrain new physics scales affecting the virtual loops. We also study constraints on the heavy Higgs particles predicted in the Minimal Supersymmetric Standard Model, which are very difficult to observe directly for large masses. Similarly, it is possible to constrain the mass of the heavy scalar top particle.

Who reads Physics impact of GigaZ?

Author

J. Erler; S. Heinemeyer; W. Hollik; G. Weiglein; P.M. Zerwas

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0370-2693)

Published

2000

Language

EN

Field

Physics and Astronomy (Physical Sciences)