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VINCIA for hadron colliders.

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Summary
This summary is machine-generated.

This study introduces the first public antenna-based Quantum Chromodynamics (QCD) initial- and final-state shower implementation. It accurately models parton shower dynamics, including soft and collinear emissions, for advanced particle physics simulations.

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Area of Science:

  • High Energy Physics
  • Computational Physics
  • Quantum Chromodynamics

Background:

  • Accurate simulation of particle interactions is crucial for interpreting experimental data in high energy physics.
  • Existing parton shower models often struggle to consistently incorporate matrix element corrections and soft/collinear dynamics.

Purpose of the Study:

  • To present the first public implementation of antenna-based Quantum Chromodynamics (QCD) initial- and final-state showers.
  • To provide an advanced simulation tool incorporating matrix element corrections for jet production.

Main Methods:

  • Utilizes [Formula: see text] antenna functions as shower kernels to capture collinear and soft singularities.
  • Employs an evolution measure based on leading poles, with gluon emissions evolved in [Formula: see text] and single-pole processes in virtuality.
  • Incorporates exact on-shell phase-space factorizations for recoils and kinematics, allowing non-ordered emissions.

Main Results:

  • The implementation handles massless QCD partons and colourless resonances.
  • Includes tree-level matrix-element corrections for QCD up to 4 jets and for Drell-Yan/Higgs production up to V/H + 3 jets.
  • The resulting algorithm is publicly available in Vincia 2.0.

Conclusions:

  • This antenna-based shower provides a significant advancement in simulating high-energy particle collisions.
  • The public release of Vincia 2.0 facilitates broader use and further development in the field.
  • The method offers improved accuracy in modeling complex QCD phenomena.