A two-stage neural network that separates single and double resonant top production improves the expected 95% CL limit on the right-handed Wtb coupling f_R^V from 0.21 to 0.17.
Secondary particles spectra in the decay of a polarized top quark with anomalous $tWb$ coupling
1 Pith paper cite this work. Polarity classification is still indexing.
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abstract
Analytic expression for energy and angular dependence of a secondary charged lepton in the decay of a polarized top quark with anomalous $tWb$ couplings in the presence of all anomalous couplings are derived. The angular distribution of the b-quark is derived as well. It is presented that the charged lepton spin correlation coefficient is not very sensitive to the anomalous couplings. However, the b-quark spin correlation coefficient is sensitive to anomalous couplings and could be used as a powerful tool for searching of non-SM coupling.
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Separation of left-handed and anomalous right-handed vector operators contributions into the Wtb vertex for single and double resonant top quark production processes using a neural network
A two-stage neural network that separates single and double resonant top production improves the expected 95% CL limit on the right-handed Wtb coupling f_R^V from 0.21 to 0.17.