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Use of W-boson longitudinal-transverse interferencein top quark spin-correlation functions

  • C. A. NelsonEmail author
  • E. G. Barbagiovanni
  • J. J. Berger
  • E. K. Pueschel
  • J. R. Wickman
Theoretical Physics

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 \(q \bar{q} \rightarrow t \bar{t} \rightarrow (W^ + b) (W^- \bar{b} ) \rightarrow (l^{ + } \nu b ) (W^- \bar{b} )\), 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 tW+b decay mode. For the CP-conjugate case, there is an analogous function and tests for \(\bar{t} \rightarrow W^{-} \bar{b}\) decay. These results make use of W-boson longitudinal-transverse interference.

Keywords

Field Theory Elementary Particle Quantum Field Theory Large Hadron Collider Relative Sign 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2006

Authors and Affiliations

  • C. A. Nelson
    • 1
    Email author
  • E. G. Barbagiovanni
    • 1
  • J. J. Berger
    • 1
  • E. K. Pueschel
    • 1
  • J. R. Wickman
    • 1
  1. 1.Department of PhysicsState University of New York at BinghamtonBinghamtonUSA

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