Additional CP odd observables in Z decays

G. Valencia; A. Soni

doi:10.1016/0370-2693(91)90498-F

Additional CP odd observables in Z decays

G. Valencia, A. Soni

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Abstract

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 language	English
Pages (from-to)	517-522
Number of pages	6
Journal	Physics Letters B
Volume	263
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(91)90498-F
Publication status	Published - 18 Jul 1991
Externally published	Yes

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AU - Soni, A.

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AB - 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.

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VL - 263

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EP - 522

JO - Physics Letters B

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IS - 3-4

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Additional CP odd observables in Z decays

Abstract

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