Use of W-boson longitudinal-transverse interferencein top quark spin-correlation functions |
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Authors: | C A Nelson E G Barbagiovanni J J Berger E K Pueschel J R Wickman |
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Institution: | (1) Department of Physics, State University of New York at Binghamton, N.Y. 13902 Binghamton, USA |
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Abstract: | 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 λb=-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.
Received: 24 June 2005, Revised: 10 August 2005, Published online: 3 November 2005 |
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Keywords: | |
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