Some dipole shower studies
Cabouat, Baptiste and Sjöstrand, Torbjörn LU
(2018)
In European Physical Journal C
78(3).
- Abstract
Parton showers have become a standard component in the description of high-energy collisions. Nowadays most final-state ones are of the dipole character, wherein a pair of partons branches into three, with energy and momentum preserved inside this subsystem. For initial-state showers a dipole picture is also possible and commonly used, but the older global-recoil strategy remains a valid alternative, wherein larger groups of partons share the energy–momentum preservation task. In this article we introduce and implement a dipole picture also for initial-state radiation in Pythia, and compare with the existing global-recoil one, and with data. For the case of Deeply Inelastic Scattering we can directly compare with matrix element... (More)
Parton showers have become a standard component in the description of high-energy collisions. Nowadays most final-state ones are of the dipole character, wherein a pair of partons branches into three, with energy and momentum preserved inside this subsystem. For initial-state showers a dipole picture is also possible and commonly used, but the older global-recoil strategy remains a valid alternative, wherein larger groups of partons share the energy–momentum preservation task. In this article we introduce and implement a dipole picture also for initial-state radiation in Pythia, and compare with the existing global-recoil one, and with data. For the case of Deeply Inelastic Scattering we can directly compare with matrix element expressions and show that the dipole picture gives a very good description over the whole phase space, at least for the first branching.
(Less)
- author
- Cabouat, Baptiste
and Sjöstrand, Torbjörn
LU
- organization
- publishing date
- 2018-03-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 78
- issue
- 3
- article number
- 226
- publisher
- Springer
- external identifiers
-
- scopus:85044290157
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-018-5645-z
- project
- Innovative Network for Monte Carlo Event Generators for LHC Physics
- language
- English
- LU publication?
- yes
- id
- b126d68a-ff8a-4e0a-89a7-253aa76512c9
- date added to LUP
- 2018-04-05 15:00:25
- date last changed
- 2024-04-01 03:43:26
@article{b126d68a-ff8a-4e0a-89a7-253aa76512c9,
abstract = {{<p>Parton showers have become a standard component in the description of high-energy collisions. Nowadays most final-state ones are of the dipole character, wherein a pair of partons branches into three, with energy and momentum preserved inside this subsystem. For initial-state showers a dipole picture is also possible and commonly used, but the older global-recoil strategy remains a valid alternative, wherein larger groups of partons share the energy–momentum preservation task. In this article we introduce and implement a dipole picture also for initial-state radiation in Pythia, and compare with the existing global-recoil one, and with data. For the case of Deeply Inelastic Scattering we can directly compare with matrix element expressions and show that the dipole picture gives a very good description over the whole phase space, at least for the first branching.</p>}},
author = {{Cabouat, Baptiste and Sjöstrand, Torbjörn}},
issn = {{1434-6044}},
language = {{eng}},
month = {{03}},
number = {{3}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Some dipole shower studies}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-018-5645-z}},
doi = {{10.1140/epjc/s10052-018-5645-z}},
volume = {{78}},
year = {{2018}},
}