Charged-particle multiplicity density at midrapidity in central Pb-Pb collisions at √sNN=2.76 TeV
The first measurement of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair √sNN=2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section, the pseudorapidity density of primary...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
13 December 2010
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| In: |
Physical review letters
Year: 2010, Jahrgang: 105, Heft: 25, Pages: 1-11 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.105.252301 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.105.252301 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.105.252301 
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| Verfasserangaben: | K. Aamodt et al. (ALICE Collaboration)* |
MARC
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| 500 | |a *(ALICE Collaboration): K. Aamodt, V. Anguelov, O. Busch, P. Glässel, R. Grajcarek, N. Herrmann, J. Klein, J. Mercado Pérez, K. Oyama, Y. Pachmayer, R. Schicker, K. Schweda, J. Stachel, S. Vallero, B. Windelband [und 952 weitere Personen] | ||
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| 500 | |a Gesehen am 14.11.2022 | ||
| 520 | |a The first measurement of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair √sNN=2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section, the pseudorapidity density of primary charged particles at midrapidity is 1584±4(stat)±76(syst), which corresponds to 8.3±0.4(syst) per participating nucleon pair. This represents an increase of about a factor 1.9 relative to pp collisions at similar collision energies, and about a factor 2.2 to central Au-Au collisions at √sNN=0.2 TeV. This measurement provides the first experimental constraint for models of nucleus-nucleus collisions at LHC energies. | ||
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