Charm estimate from the dilepton spectra in nuclear collisions
- A validity of a recent estimate of an upper limit of charm production in central Pb+Pb collisions at 158 AGeV is critically discussed. Within a simple model we study properties of the background subtraction procedure used for an extraction of the charm signal from the analysis of dilepton spectra. We demonstrate that a production asymmetry between positively and negatively charged background muons and a large multiplicity of signal pairs leads to biased results. Therefore the applicability of this procedure for the analysis of nucleus-nucleus data should be reconsidered before final conclusions on the upper limit estimate of charm production could be drawn.
| Author: | Marek GaździckiORCiD, Mark I. GorensteinORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-16832 |
| ArXiv Id: | http://arxiv.org/abs/hep-ph/0003319 |
| Parent Title (English): | IKF–HENPG ; 02–00 |
| Series (Serial Number): | IKF–HENPG (02-00) |
| Publisher: | Institut für Kernphysik, Goethe-Universität Frankfurt |
| Place of publication: | Frankfurt am Main |
| Document Type: | Working Paper |
| Language: | English |
| Date of Publication (online): | 2001/04/10 |
| Date of first Publication: | 2001/04/10 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2005/09/29 |
| Page Number: | 8 |
| HeBIS-PPN: | 185514014 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
