Open charm enhancement in Pb + Pb collisions at SPS
- The statistical coalescence model for the production of open and hidden charm is considered within the canonical ensemble formulation. The data for the J/psi multiplicity in Pb+Pb collisions at 158 A·GeV are used for the model prediction of the open charm yield. We find a strong enhancement of the open charm production, by a factor of about 2 4, over the standard hard-collision model extrapolation from nucleon-nucleon to nucleus-nucleus collisions. A possible mechanism of the open charm enhancement in A+A collisions at the SPS energies is proposed.
Author: | Mark I. GorensteinORCiDGND, Andriy P. KostyukORCiD, Horst StöckerORCiDGND, Walter GreinerGND |
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URN: | urn:nbn:de:hebis:30-21760 |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2005/11/21 |
Year of first Publication: | 2000 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2005/11/21 |
Tag: | Kollision; Nukleon; open charm yield collision; nucleon; open charm yield |
Source: | J.Phys.G27:L47-L52,2001. [hep-ph/0012015] |
HeBIS-PPN: | 185476457 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | Deutsches Urheberrecht |