Additional CP odd observables in Z decays

G. Valencia, A. Soni

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Recently, T-odd observables in Z-boson decays have been studied from the point of view of effective lagrangians. We consider additional CP-odd observables that appear in conjunction with absorptive phases. As an example we discuss the possibility of observing a CP violating energy asymmetry in the decays Z→BX and Z→B̄X, and we related this to the presence of an electroweak dipole moment of the b-quark. We estimate that expected LEP performance could yield a sensitivity to dipole moments of the order of 10-17 e cm.

Original languageEnglish
Pages (from-to)517-522
Number of pages6
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - 18 Jul 1991
Externally publishedYes

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