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Z′ signals in polarised top-antitop final states

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Abstract

We study the sensitivity of top-antitop samples produced at all energy stages of the Large Hadron Collider (LHC) to the nature of an underlying Z′ boson, in presence of full tree level standard model (SM) background effects and relative interferences. We concentrate on differential mass spectra as well as both spatial and spin asymmetries thereby demonstrating that exploiting combinations of these observables will enable one to distinguish between sequential Z′s and those pertaining to Left-Right symmetric models as well as E 6 inspired ones, assuming realistic final state reconstruction efficiencies and error estimates.

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Authors and Affiliations

  1. Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, D-79104, Freiburg, Germany

    L. Basso

  2. School of Physics & Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K.

    K. Mimasu & S. Moretti

  3. Particle Physics Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, U.K.

    S. Moretti

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  1. L. Basso
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Basso, L., Mimasu, K. & Moretti, S. Z′ signals in polarised top-antitop final states. J. High Energ. Phys. 2012, 24 (2012). https://doi.org/10.1007/JHEP09(2012)024

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