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Optimal-Observable Analysis of Possible New Physics Using the b-quark in $\gamma \gamma \to t\overline{t} \to bX$
We study possible anomalous top-quark couplings generated by SU(2) x U(1) gauge invariant dimension-6 effective operators, using the final b-quark momentum distribution in gamma gamma -> tt -> bX. Taking into account non-standard tt gamma, tbW and gamma gamma H couplings, we perform an optimal...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
2004
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2004.04.075 http://cds.cern.ch/record/725157 |