We present phenomenological results for tt¯ j + X production at the Large Hadron Collider, of interest for designing forthcoming experimental analyses of this process. We focus on those cases where the tt¯ j + X process is considered as a signal. We discuss present theoretical uncertainties and the dependence on relevant input parameters entering the computation. For the R distribution, which depends on the invariant mass of the tt¯ j-system, we present reference predictions in the on-shell, MS¯ and MSR top-quark mass renormalization schemes, applying the latter scheme to this process for the first time. Our conclusions are particularly interesting for those analyses aiming at extracting the top-quark mass from cross-section measurements.
Alioli, S., Fuster, J., Garzelli, M., Gavardi, A., Irles, A., Melini, D., et al. (2022). Phenomenology of tt¯ j + X production at the LHC. JOURNAL OF HIGH ENERGY PHYSICS, 2022(5) [10.1007/JHEP05(2022)146].
Phenomenology of tt¯ j + X production at the LHC
Alioli S.;Gavardi A.;
2022
Abstract
We present phenomenological results for tt¯ j + X production at the Large Hadron Collider, of interest for designing forthcoming experimental analyses of this process. We focus on those cases where the tt¯ j + X process is considered as a signal. We discuss present theoretical uncertainties and the dependence on relevant input parameters entering the computation. For the R distribution, which depends on the invariant mass of the tt¯ j-system, we present reference predictions in the on-shell, MS¯ and MSR top-quark mass renormalization schemes, applying the latter scheme to this process for the first time. Our conclusions are particularly interesting for those analyses aiming at extracting the top-quark mass from cross-section measurements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.