CERN-TH-2017-174
IFJPAN-IV-2017-16
MCNET-17-13
arXiv:1708.01491
Eur.Phys.J. C77 (2017) 876

by: Reichelt, Daniel (Dresden, Tech. U.) et al.

Abstract:
The properties of quark and gluon jets, and the differences between them, are increasingly important at the LHC. However, Monte Carlo event generators are normally tuned to data from $e^+e^-$ collisions which are primarily sensitive to quark-initiated jets. In order to improve the description of gluon jets we make improvements to the perturbative and the non-perturbative modelling of gluon jets and include data with gluon-initiated jets in the tuning for the first time. The resultant tunes significantly improve the description of gluon jets and are now the default in Herwig 7.1.