Journal article
Measurement of the charm fragmentation function in D photoproduction at HERA
The journal of high energy physics, Vol.2009(4), pp.82-82
04/01/2009
DOI: 10.1088/1126-6708/2009/04/082
Abstract
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∥)D*/2Ejet, where E is the energy of the D* meson and p∥ is the longitudinal momentum of the D* meson relative to the axis of the associated jet of energy Ejet. 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.
Details
- Title: Subtitle
- Measurement of the charm fragmentation function in D photoproduction at HERA
- Creators
- ZEUS CollaborationJose Repond (Contributor) - Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The journal of high energy physics, Vol.2009(4), pp.82-82
- DOI
- 10.1088/1126-6708/2009/04/082
- ISSN
- 1029-8479
- eISSN
- 1029-8479
- Language
- English
- Date published
- 04/01/2009
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627289202771
Metrics
1 Record Views