Third order QCD predictions for W and Z-boson production

Le résumé fourni par la source

The precision of 1% that is reached today in LHC 𝑊- and 𝑍-boson measurements is a great achievement, but also a great challenge. The reward of these measurements comes from a wealth of Standard Model precision tests and phenomenology. On the other hand, the achieved precision challenges practical calculational methods for higher order cross-sections, and even stress tests underlying concepts like factorization. In particular, perturbative third-order QCD predictions are necessary to reduce residual truncation uncertainties to the level of 1 − 2%. These developments open up a future focus on many similarly sized effects in non-perturbative proton structure and electroweak effects, for example. In these proceedings we briefly summarize our third-order QCD predictions for 𝑊- and 𝑍-boson production, which are publicly implemented in the code MCFM. We put our calculation in the broader context of current calculations and future development needs.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.