Production of D*+(2010) mesons by high energy neutrinos from the Tevatron |
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Authors: | W Bernreuther O Nachtmann |
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Institution: | 1. Institut für Theoretische Physik, RWTH Aachen, D-52056, Aachen, Germany 2. Institut für Theoretische Physik, Universit?t Heidelberg, D-69120, Heidelberg, Germany
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Abstract: | We discuss some issues arising in the search for CP violation in the decays Z → τ+ τ? and Z → bb?X. The form-factor and the effective Lagrangian approach to parametrize CP-violating effects are compared. We emphasize the interest to study both real and imaginary parts of CP-violating form factors like the weak dipole moment form factor ${d_?u^Z}={(m_Z^2)}$ of the τ-lepton. We propose an “optimal” way to search for CP violation when Z → bb?X events have to be selected on a statistical basis from the total number of Z hadronic decays. |
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