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We extend to the special case of Bhabha scattering the "Z-peak subtracted"representation previously applied to e+e- to f f(bar) (f different from e).This allows us to analyze the process at any energy while imposing in anautomatic way the constraints set by high precision measurements at the Z peak.The procedure turns out to be particularly convenient for the search of acertain class of new physics effects at variable energy. A few examples areconsidered and the information thus obtained is combined with the correspondingone that can be derived from the other e+e- annihilation processes, both atpresent (LEP2) and at future colliders. This shows that the role of Bhabhascattering in this respect can be quite relevant.Comment: 19 pages, 6 tables and 2 figures; version to appear in Phys.Rev.D  e-mail: renard@lpm.univ-montp2.f

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi></mml:math>-peak subtracted representation of Bhabha scattering and search for new physics effects

Z-peak subtracted representation of Bhabha scattering and search for new physics effects