Header

UZH-Logo

Maintenance Infos

Hadronic final states in deep-inelastic scattering with Sherpa


Carli, T; Gehrmann, T; Höche, S (2010). Hadronic final states in deep-inelastic scattering with Sherpa. European Physical Journal C - Particles and Fields, 67(1-2):73-97.

Abstract

We extend the multi-purpose Monte Carlo event generator Sherpa to include processes in deeply inelastic lepton–nucleon scattering. Hadronic final states in this kinematical setting are characterised by the presence of multiple kinematical scales, which were up to now accounted for only by specific resummations in individual kinematical regions. Using an extension of the recently introduced method for merging truncated parton showers with higher-order tree-level matrix elements, it is possible to obtain predictions which are reliable in all kinematical limits. Different hadronic final states, defined by jets or individual hadrons, in deep-inelastic scattering are analysed and the corresponding results are compared to HERA data. The various sources of theoretical uncertainties of the approach are discussed and quantified. The extension to deeply inelastic processes provides the opportunity to validate the merging of matrix elements and parton showers in multi-scale kinematics inaccessible in other collider environments. It also allows to use HERA data on hadronic final states in the tuning of hadronisation models.

Abstract

We extend the multi-purpose Monte Carlo event generator Sherpa to include processes in deeply inelastic lepton–nucleon scattering. Hadronic final states in this kinematical setting are characterised by the presence of multiple kinematical scales, which were up to now accounted for only by specific resummations in individual kinematical regions. Using an extension of the recently introduced method for merging truncated parton showers with higher-order tree-level matrix elements, it is possible to obtain predictions which are reliable in all kinematical limits. Different hadronic final states, defined by jets or individual hadrons, in deep-inelastic scattering are analysed and the corresponding results are compared to HERA data. The various sources of theoretical uncertainties of the approach are discussed and quantified. The extension to deeply inelastic processes provides the opportunity to validate the merging of matrix elements and parton showers in multi-scale kinematics inaccessible in other collider environments. It also allows to use HERA data on hadronic final states in the tuning of hadronisation models.

Statistics

Citations

23 citations in Web of Science®
27 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

43 downloads since deposited on 02 Mar 2011
4 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:May 2010
Deposited On:02 Mar 2011 16:54
Last Modified:05 Apr 2016 14:09
Publisher:Springer
ISSN:1434-6044
Publisher DOI:https://doi.org/10.1140/epjc/s10052-010-1261-2
Related URLs:http://arxiv.org/abs/0912.3715

Download

Download PDF  'Hadronic final states in deep-inelastic scattering with Sherpa'.
Preview
Content: Accepted Version
Filetype: PDF
Size: 937kB
View at publisher