Use of W-boson longitudinal-transverse interferencein top quark spin-correlation functions
Department of Physics, State University of New York at Binghamton, N.Y. 13902, Binghamton, USA
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Most of this paper consists of the derivation of general beam-referenced stage-two spin-correlation functions for the analysis of top-antitop pair production at the Tevatron, at the Large Hadron Collider, and/or at an International Linear Collider. However, for the charged-lepton plus jets reaction , there is a simple three-angle spin-correlation function for the determination of the relative sign of or for the measurement of a possible non-trivial phase between the two dominant λ b=-1/2 helicity amplitudes for the t → W + b decay mode. For the CP-conjugate case, there is an analogous function and tests for decay. These results make use of W-boson longitudinal-transverse interference.
© Springer-Verlag, 2006