Advanced

A model for initial state parton showers

Sjöstrand, Torbjörn LU (1985) In Physics Letters B 157(4). p.321-325
Abstract

We present a detailed model for exclusive properties of initial state parton showers. A numerically efficient algorithm is obtained by tracing the parton showers backwards, i.e. start with the hard scattering partons and then successively reconstruct preceding branchings in falling sequence of spacelike virtualities Q2 and rising sequence of parton energies. We show how the Altarelli-Parisi equations can be recast in a form suitable for this, and also discuss the kinematics of the branchings. The complete model is implemented in a Monte Carlo program, and some first results are presented.

Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
in
Physics Letters B
volume
157
issue
4
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:0001125109
ISSN
0370-2693
DOI
10.1016/0370-2693(85)90674-4
language
English
LU publication?
no
id
6b3bfc4c-7edc-4eb7-9184-7b5e9d62ec6c
date added to LUP
2019-05-02 22:13:14
date last changed
2019-10-06 04:38:57
@article{6b3bfc4c-7edc-4eb7-9184-7b5e9d62ec6c,
  abstract     = {<p>We present a detailed model for exclusive properties of initial state parton showers. A numerically efficient algorithm is obtained by tracing the parton showers backwards, i.e. start with the hard scattering partons and then successively reconstruct preceding branchings in falling sequence of spacelike virtualities Q<sup>2</sup> and rising sequence of parton energies. We show how the Altarelli-Parisi equations can be recast in a form suitable for this, and also discuss the kinematics of the branchings. The complete model is implemented in a Monte Carlo program, and some first results are presented.</p>},
  author       = {Sjöstrand, Torbjörn},
  issn         = {0370-2693},
  language     = {eng},
  month        = {07},
  number       = {4},
  pages        = {321--325},
  publisher    = {Elsevier},
  series       = {Physics Letters B},
  title        = {A model for initial state parton showers},
  url          = {http://dx.doi.org/10.1016/0370-2693(85)90674-4},
  volume       = {157},
  year         = {1985},
}