Multijet merging in a variable flavor number scheme

2019/04/20 by Stefan Höche, Johannes Krause, F. Siegert +1 · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Discrete mathematics #Equivalence (formal languages) #Flavor #High-Energy Particle Collisions Research #Logarithm #Mathematical analysis #Mathematics #Particle Accelerators and Free-Electron Lasers #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Quark #Scheme (mathematics) #hep-ph

paper · pdf · doi:10.1103/physrevd.100.014011

published as Phys. Rev. D 100, 014011 (2019) · 18 pages, 5 figures, 1 table

arxiv created 2019/04/20 · openalex publication_date 2019/07/10 · arxiv updated 2019/07/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We propose a novel technique for the combination of multijet merged simulations in the five-flavor scheme with calculations for the production of b-quark associated final states in the four-flavor scheme. We show the equivalence of our algorithm to the FONLL method at the fixed-order and logarithmic accuracy inherent to the matrix-element and parton-shower simulation employed in the multijet merging. As a first application, we discuss Zbb production at the Large Hadron Collider.

Citations

• 3-, 4-, and 5-flavor next-to-next-to-leading order parton distribution functions from deep-inelastic-scattering data and at hadron colliders
• LHAPDF6: parton density access in the LHC precision era
• NLO QCD corrections toZbb¯production with massive bottom quarks at the Fermilab Tevatron
• Exclusive Higgs boson production with bottom quarks at hadron colliders
• Asymptotic freedom in parton language
• Event generation with SHERPA 1.1
• QCD radiation off heavy particles
• Leptoproduction of heavy quarks. II. A unified QCD formulation of charged and neutral current processes from fixed-target to collider energies
• Scattering Amplitudes with Open Loops
• A modified cluster-hadronisation model
• QCD Matrix Elements + Parton Showers
• Parton distributions for the LHC run II
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Simulating b-associated production of Z and Higgs bosons with the Sherpa event generator
• Higgs radiation off bottom quarks at the Fermilab Tevatron and the CERN LHC
• Merging NLO multi-jet calculations with improved unitarization
• Leading-color fully differential two-loop soft corrections to QCD dipole showers
• Observation of Higgs Boson Decay to Bottom Quarks

Cited by

• Heavy quark mass effects in charged-current deep-inelastic scattering at approximate NNLO in the Aivazis-Collins-Olness-Tung scheme