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

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

Jin Min Yang
(
- Iowa State U.
)
,
Bing-Lin Young
(
- Iowa State U.
)

Mar, 1997

24 pages

Published in:

Phys.Rev.D 56 (1997) 5907-5918

e-Print:

hep-ph/9703463 [hep-ph]

DOI:

10.1103/PhysRevD.56.5907

Report number:

AMES-HET-97-03,
AMES-HET-97-3

View in:

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Abstract: (arXiv)

We listed all possible dimension-six CP-violating

SU_c(3)\times SU_L(2)\times U_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 have evaluated sample contributions of these operators to CP-odd asymmetries of transverse polarization of top quark in single top production at the upgraded Tevatron, the similar effect in top-antitop 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 these CP-violating new physics has also been studied.

Note:

24 pages, 2 figures added

12.60.Cn
11.30.Er
14.65.Ha
CP: violation
operator: higher-dimensional
dimension: 6
symmetry: SU(3) x SU(2) x U(1)
family: 3
effective Lagrangian
electroweak interaction: symmetry breaking

References(73)

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