Dimension-six CP-violating operators of the third-family quarks and their effects at colliders

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.5907· OSTI ID:543920

Yang, J M; Young, B ^[1]

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1. Department of Physics and Astronomy and International Institute of Theoretical and Applied Physics, Iowa State University, Ames, Iowa 50011 (United States)

We list all possible dimension-six CP-violating SU{sub c}(3){times}SU{sub L}(2){times}U{sub Y}(1)-invariant operators involving the third-family quarks, which can be generated by new physics at a higher energy scale. The expressions of these operators after electroweak symmetry breaking and the induced effective couplings Wt{bar b}, Xb{bar b}, and Xt{bar t} (X=Z,{gamma},g,H) are also presented. We evaluate sample contributions of these operators to CP-odd asymmetries of transverse polarization of the top quark in single top quark production at the upgraded Fermilab Tevatron, the same polarization effect in top-quark{endash}top-antiquark pair production at the NLC, and the CP-odd observables of momentum correlations among the top quark decay products at the NLC. The energy and luminosity sensitivity in probing this CP-violating new physics is also studied. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 543920
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
B QUARKS
COUPLING
CP INVARIANCE
FERMILAB TEVATRON
LUMINOSITY
PARTICLE PRODUCTION
SENSITIVITY
SU-2 GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
T QUARKS
U-1 GROUPS
VIOLATIONS
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS