LoopFest XX

Session

Friday Morning Session 1

13 May 2022, 09:00

Benedum Hall 157 (University of Pittsburgh)

113. EW global analysis

Laura Reina (Florida State University (US))

13/05/2022, 09:00

77. GRIFFIN: a library for electroweak radiative corrections in 4-fermion processes

Lisong Chen

13/05/2022, 09:25

The new precision frontier laid out by future e+e- colliders requires higher-order electroweak and mixed EW-QCD radiative corrections of electroweak precision observables(EWPOs) defined at Z-resonance. It has also long been considered that a manifestly gauge invariant theoretical set-up of the scattering in the vicinity of the resonance is a must to incorporate higher-order corrections from...

97. The Drell-Yan qT Spectrum and Its Uncertainty at Third Order in QCD

Johannes Michel (MIT CTP)

13/05/2022, 09:45

We present state-of-the-art SCETlib predictions for the $W$ and $Z/\gamma^\ast$ transverse-momentum ($q_T$) distributions at the LHC at complete three-loop order in resummed perturbation theory (N$^3$LL$'$) and matched to available fixed order. We pay particular attention to the estimation of theory uncertainties via profile scale variations in such a way that perturbative uncertainties due to...

88. Theoretical uncertainties due to missing higher orders in perturbative computations

Robert Szafron (Brookhaven National Laboratory)

13/05/2022, 10:10

Constantly increasing accuracy of the experimental data and high-order calculations
require rethinking the theoretical uncertainties due to the missing higher orders.
The traditionally used simple but ad hoc scale variation prescription has no
probabilistic interpretation. The Bayesian approach to theoretical uncertainties
introduced by Cacciari and Houdeau offers an alternative. I will...