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We calculate the new physics effects to the branching ratios of the leptonflavor conserving decays Z -> l^+ l^- in the framework of the general two HiggsDoublet model. We predict the upper limits for the couplings|\bar{\xi}^{D}_{N,\mu\tau}| and |\bar{\xi}^{D}_{N,\tau\tau}| as 3\times 10^2GeV and 1\times 10^2 GeV, respectively.Comment: 9 pages, 3 figure

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

Lepton flavor conserving<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>Z</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow></mml:math>decays …

Lepton flavor conservingZ→l+l−decays …