https://doi.org/10.1140/epjc/s10052-016-4035-7
Regular Article - Theoretical Physics
Dynamical approach to MPI in W+dijet and Z+dijet production within the PYTHIA event generator
1
Department of Physics, Technion-Israel Institute of Technology, Haifa, Israel
2
Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22761, Hamburg, Germany
* e-mail: blok@physics.technion.ac.il
Received:
27
October
2015
Accepted:
29
March
2016
Published online:
13
April
2016
The new numerical approach that includes 
mechanisms is applied to double parton scattering (DPS) in W+dijet and Z+dijet final-state production in proton–proton collisions at the LHC. By using the underlying event (UE) simulation from a pythia 8.205 tune extracted in hadronic events, we show that, like in the case of a four-jet final state, the inclusion of mechanisms improves the description of experimental data measured at 7 TeV. The analysis is based on applying an event-by-event reweighting factor to a standard pythia 8.205 sample, by using the theoretical value of 
, which includes corrections due to mechanisms. In addition, predictions for proton–proton collisions at a center-of-mass energy of 13 TeV are shown for DPS-sensitive observables. The relevant code, used for this analysis, is publicly available at the following link: http://desy.de/~gunnep/SigmaEffectiveDependence/.
© The Author(s), 2016
