# A method to determine |Vcb| at the weak scale in top decays at the LHC

@article{Harrison2019AMT,
title={A method to determine |Vcb| at the weak scale in top decays at the LHC},
journal={Journal of High Energy Physics},
year={2019},
volume={2019},
pages={1-15}
}
• Published 22 October 2018
• Physics
• Journal of High Energy Physics
A bstractUntil now, the Cabibbo Kobayashi Maskawa matrix element, |Vcb|, has always been measured in B decays, i.e. at an energy scale qb∼mb2$${q}_b\sim \frac{m_b}{2}$$, far below the weak scale. We consider here the possibility of measuring it close to the weak scale, at qW ∼ mW, in top decays at the Large Hadron Collider (LHC). Our proposed method would use data from the LHC experiments in hadronic top decays t→bW+→bb¯c$$t\to b{W}^{+}\to b\overline{b}c$$, tagged by the semileptonic decay…
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