Uncertainties in next-to-leading order plus parton shower matched simulations of inclusive jet and dijet production

Journal Article · Thu Nov 01 00:00:00 EDT 2012 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.86.094042· OSTI ID:1057409

Höche, Stefan; Schönherr, Marek

We quantify uncertainties in the Monte Carlo simulation of inclusive and dijet final states, which arise from using the MC@NLO technique for matching next-to-leading order parton-level calculations and parton showers. We analyse a large variety of data from early measurements at the LHC. In regions of phase space where Sudakov logarithms dominate over high-energy effects, we observe that the main uncertainty can be ascribed to the free parameters of the parton shower. In complementary regions, the main uncertainty stems from the considerable freedom in the simulation of underlying events.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC); High Energy Physics (HEP)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1057409
• Report Number(s): SLAC-PUB-15216; PRVDAQ; arXiv:1208.2815
• Journal Information: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 86, Issue 9; ISSN 1550-7998
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
Phenomenology-HEP
HEPPH