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We discuss indirect manifestations of graviton exchange, predicted by largeextra dimensions, in fermion-pair production at a high-energy e^+e^- collider.By means of specifically defined asymmetries among integrated angulardistributions, the graviton exchange signal can be cleanly distinguished fromthe effects of either vector-vector contact interactions or heavy scalarexchanges. The role of initial electron and positron beams polarization is alsodiscussed. The method is applied to a quantitative assessment of thesensitivity to the mass cut-off parameter M_H of the KK graviton tower in theADD scenario, and of the potential identification reach of this mechanismobtainable at the currently planned Linear Collider.Comment: 21 pages, 11 figure

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

Identification of indirect new physics effects at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>colliders: The large extra dimensions case

Identification of indirect new physics effects ate+e−colliders: The large extra dimensions case