Wuppertal 2015 – wissenschaftliches Programm
T 17.1: Vortrag
Montag, 9. März 2015, 14:00–14:15, K.11.20 (K5)
QCD radiation patterns in WH and WZ production and anomalous coupling measurements — Francisco Campanario1, •Robin Roth2, and Dieter Zeppenfeld2 — 1Theory Division, IFIC, University of Valencia-CSIC, E-46980 Paterna, Valencia, Spain — 2Institute for Theoretical Physics, KIT, 76128 Karlsruhe, Germany
We present a study of QCD radiation for WH and WZ production at the LHC. Regions with high sensitivity to anomalous couplings are identified by considering the contribution of jet activity to the transverse energy. For this, WHj and WZj production cross sections are calculated at NLO QCD using the Monte Carlo program VBFNLO. Based on the observations, we propose a dynamical jet veto to enhance the sensitivity to anomalous couplings, especially in WZ production. The dynamical jet veto avoids large logarithms, which are typical for a fixed jet veto, hence, it provides more reliable predictions.