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Composite scalars in ee collisions and radiative Z decays
Authors:W Hollik  F Schrempp
Institution:

II. Institut für Theoretische Physik der Universität Hamburg, Hamburg, Fed. Rep. Germany

* II. Institut für Theoretische Physik der Universität Hamburg, Hamburg, Fed. Rep. Germany

** Deutsches Elektronen-Synchrotron DESY, Hamburg, Fed. Rep. Germany

Abstract:Starting point is the hypothesis that the observed Z→e+eγ decays are mediated by a (composite) spin 0 boson X with 40less, approximatemXless, approximate50 GeV. The consequences for e+e→e+e, e+e→γγ and e+e→ hadrons at PETRA are explored. PETRA experiments turn out to be sensitive up to masses mXnot, vert, similar50 GeV; the best indicator for mXgreater-than or equivalent to 48 GeV is the angular distribution of Bhabha scattering.
Keywords:
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