Abstract
We present a novel event generation framework for the efficient simulation of vector boson plus multi-jet backgrounds at the high-luminosity LHC and at possible future hadron colliders. MPI parallelization of parton-level and particle-level event generation and storage of parton-level event information using the HDF5 data format allow us to obtain leading-order merged Monte-Carlo predictions with up to nine jets in the final state. The parton-level event samples generated in this manner correspond to an integrated luminosity of 3ab-1 and are made publicly available for future phenomenological studies.
Highlights
The production of a dilepton pair or a lepton-neutrino pair at hadron colliders [1,2] is both one of the most studied and one of the best understood reactions in high-energy physics
The production of an additional jet can be described fully exclusively at N2LO accuracy [7,8,9,10,11], and the production of up to five additional jets in lepton-neutrino events can be described [12,13,14] at NLO accuracy, partly in a fully automated fashion [15,16,17,18,19,20]
During the integration or event-generation stage, the integral is determined at high precision, and weighted or unweighted events are generated, and possibly stored. Both stages are ideally suited for message passing interface (MPI) parallelization
Summary
The production of a dilepton pair or a lepton-neutrino pair at hadron colliders [1,2] is both one of the most studied and one of the best understood reactions in high-energy physics. Tree-level matrix element generators [21,22,23,24,25,26,27] are capable of predicting the production rates of a Drell-Yan lepton pair in association with any number of jets, limited only by computing power These predictions can be merged with parton showers [28,29,30,31,32,33,34,35] to create simulations that include the dominant effects of Sudakov resummation and are at the same time leading-order accurate at any jet multiplicity.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
