Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 543988.0, MPI für Physik / MPI für Physik
Measurement of the charm fragmentation function in D* photoproduction at HERA
Authors:ZEUS Collaboration; Chekanov, S.; et al.
Date of Publication (YYYY-MM-DD):2009
Title of Journal:Journal of High Energy Physics
Journal Abbrev.:JHEP
Issue / Number:0904
Start Page:082
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The charm fragmentation function has been measured in D* photoproduction with the ZEUS detector at HERA using an integrated luminosity of 120 pb-1. The fragmentation function is measured versus z = (E+p_parallel){D*}/2E{jet}, where E is the energy of the D* meson and p_parallel is the longitudinal momentum of the D* meson relative to the axis of the associated jet of energy E{jet}. Jets were reconstructed using the kT clustering algorithm and required to have transverse energy larger than 9 GeV. The D* meson associated with the jet was required to have a transverse momentum larger than 2 GeV. The measured function is compared to different fragmentation models incorporated in leading-logarithm Monte Carlo simulations and in a next-to-leading-order QCD calculation. The free parameters in each fragmentation model are fitted to the data. The extracted parameters and the function itself are compared to measurements from e+e- experiments.
Classification / Thesaurus:ZEUS
Comment of the Author/Creator:19 pages, 5 figures, 3 tables, accepted by JHEP. New version including small textual clarifications in response to journal referee
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2009-268
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:0901.1210
URL:http://publications.mppmu.mpg.de/?action=search&mp...
Full Text:
You have privileges to view the following file(s):
arxiv:0901.1210.pdf  [250,00 Kb] [Comment:file from upload service]  
 
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.