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Quantum coherence, top transverse polarisation and the Tevatron asymmetry $A_{FB}^\ell$
We revisit the relation between the asymmetries $A_{FB}$ and $A_{FB}^\ell$ in $t \bar t$ production at the Tevatron, using as new physics benchmark a colour octet. We find that $A_{FB}^\ell$ receives large contributions from the interference between $\lambda = \pm 1/2$ top helicity states, which has...
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| Lenguaje: | eng |
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2014
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| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2014.07.013 http://cds.cern.ch/record/1699836 |