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Analysis of tbW and ttZ couplings from CLEO and LEP/SLC data

F. Larios·M. A. Perez·C. -P. Yuan
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Abstract

We update the constraints on anomalous dimension four $\tbw$ and $\ttz$ couplings by using CLEO $b \ra s γ$ and LEP/SLC precision $Z$-pole data. It is found that the data imposes very stringent bounds on them. Moreover, the $2 σ$ pull from SM predictions of $A_{LR}$(hadrons), $A_b$ and $A_{FB}$(b) have little chance of being explained by the strongly constrained anomalous couplings.

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F. Larios, M. A. Perez, C. -P. Yuan. 1999-03-18. Analysis of tbW and ttZ couplings from CLEO and LEP/SLC data. https://doi.org/10.1016/s0370-2693(99)00541-9

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