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.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Marek GaździckiORCiD, Mark I. GorensteinORCiDGND
ArXiv Id:
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
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
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht