A simple shower and matching algorithm
arXiv:0707.3652 · doi:10.1103/PhysRevD.78.014026
Abstract
We present a simple formalism for parton-shower Markov chains. As a first step towards more complete uncertainty bands, we incorporate a comprehensive exploration of the ambiguities inherent in such calculations. To reduce this uncertainty, we then introduce a matching formalism which allows a generated event sample to simultaneously reproduce any infrared safe distribution calculated at leading or next-to-leading order in perturbation theory, up to sub-leading corrections. To enable a more universal definition of perturbative calculations, we also propose a more general definition of the hadronization cutoff. Finally, we present an implementation of some of these ideas for final-state gluon showers, in a code dubbed VINCIA.
32 pages, 6 figures
References in corpus (1)
Cited by in corpus (4)
- A parton shower algorithm based on Catani-Seymour dipole factorisation
- Parton showers with quantum interference: leading color, with spin
- Parton showers from the dipole formalism
- A Consistent Prescription for Combining Perturbative Calculations and Parton Showers in Case of Associated Z b anti-b Hadroproduction