Event generation with Sherpa 3

Journal Article · 19 December 2024 · JHEP

DOI: https://doi.org/10.1007/JHEP12(2024)156 · OSTI ID:2477316

Bothmann, Enrico  ^[1]; Flower, Lois  ^[2]; Gütschow, Christian  ^[3]; Höche, Stefan  ^[4]; Hoppe, Mareen  ^[5]; Isaacson, Joshua  ^[4]; Knobbe, Max  ^[6]; Krauss, Frank  ^[7]; Meinzinger, Peter  ^[8]; Napoletano, Davide  ^[9]; Price, Alan  ^[10]; Reichelt, Daniel  ^[11]; Schönherr, Marek  ^[7]; Schumann, Steffen  ^[1]; Siegert, Frank  ^[5]

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1. Gottingen U.
2. Durham U., IPPP; U. Liverpool (main)
3. University Coll. London
4. Fermilab
5. Dresden, Tech. U.
6. Gottingen U.; Fermilab
7. Durham U., IPPP
8. Durham U., IPPP; Zurich U.
9. Milan Bicocca U.; INFN, Milan
10. Jagiellonian U.
11. Durham U., IPPP; CERN

Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. We summarise new developments, essential features, and ongoing improvements within the Sherpa 3 release series. Physics improvements include higher-order electroweak corrections, simulations of photoproduction and hard diffraction at NLO QCD, heavy-flavour matching in NLO multijet merging, spin-polarised cross section calculations, and a new model of colour reconnections. In addition, the modelling of hadronisation, the underlying event and QED effects in both production and decay has been improved, and the overall event generation efficiency has been enhanced.

• Research Organization: CERN; Dresden, Tech. U.; Durham U., IPPP; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Gottingen U.; INFN, Milan; Jagiellonian U.; Milan Bicocca U.; U. Liverpool (main); University Coll. London; Zurich U.
• Sponsoring Organization: US Department of Energy
• Grant/Contract Number: 89243024CSC000002; AC02-07CH11359
• OSTI ID: 2477316
• Report Number(s): CERN-TH-2024-171; FERMILAB-PUB-24-0748-T; IPPP/24/67; LTH-1385; MCNET-24-17; ZU-TH 51/24; oai:inspirehep.net:2843469; arXiv:2410.22148
• Journal Information: JHEP, Journal Name: JHEP Vol. 12
• Country of Publication: United States
• Language: English