NLO QCD corrections for off-shell $t\bar{t}b\bar{b}$

Abstract

We present a full off-shell NLO QCD calculation of $pp\to e^{+}{\nu }_{e}b{\mu }^{-}{\bar{\nu }}_{\mu }\bar{b}b\bar{b}+X$. Results are obtained using the HELAC-NLO Monte Carlo framework. We discuss a comparison to previous results and to experimental measurements. We also investigate the contribution of the initial states involving $b$-quarks and we introduce two $b$-jet tagging schemes.

Comments: 9 pages, 3 figures, contribution to the Proceedings of the 15th International Symposium on Radiative Corrections (RADCOR) and the XIX Workshop on Radiative Corrections for the LHC and Future Colliders (LoopFest), 2021