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Expansion dynamics of Pb–Pb collisions at 40AGeV/cviewed by negatively charged hadrons

Authors :
NA57 Collaboration
F Antinori
P Bacon
A Badalà
R Barbera
A Belogianni
I J Bloodworth
M Bombara
G E Bruno
S A Bull
R Caliandro
M Campbell
W Carena
N Carrer
R F Clarke
A Dainese
D Di Bari
S Di Liberto
R Divià
D Elia
D Evans
G A Feofilov
R A Fini
P Ganoti
B Ghidini
G Grella
H Helstrup
K F Hetland
A K Holme
A Jacholkowski
G T Jones
P Jovanovic
A Jusko
R Kamermans
J B Kinson
K Knudson
V Kondratiev
I Králik
A Kravčáková
P Kuijer
V Lenti
R Lietava
G Løvhøiden
V Manzari
M A Mazzoni
F Meddi
A Michalon
M Morando
P I Norman
A Palmeri
G S Pappalardo
B Pastirčák
R J Platt
E Quercigh
F Riggi
D Röhrich
G Romano
R Romita
K Šafařík
L Šándor
E Schillings
G Segato
M Sené
R Sené
W Snoeys
F Soramel
M Spyropoulou-Stassinaki
P Staroba
R Turrisi
T S Tveter
J Urbán
P van de Ven
P Vande Vyvre
A Vascotto
T Vik
O Villalobos Baillie
L Vinogradov
T Virgili
M F Votruba
J Vrláková
P Závada
Département Recherches Subatomiques (DRS-IPHC)
Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)
NA57
Source :
Journal of Physics G: Nuclear and Particle Physics, Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2007, 34, pp.403-429. ⟨10.1088/0954-3899/34/3/001⟩
Publication Year :
2007
Publisher :
IOP Publishing, 2007.

Abstract

In this paper we present results on transverse mass spectra and Hanbury-Brown and Twiss correlation functions of negatively charged hadrons, which are expected to be mostly negative pions, measured in Pb-Pb collisions at 40 A GeV/c beam momentum. Based on these data, the collision dynamics and the space-time extent of the system at the thermal freeze-out are studied over a centrality range corresponding to the most central 53% of the Pb--Pb inelastic cross section. Comparisons with freeze-out conditions of strange particles and HBT results from other experiments are discussed.<br />29 pages, 18 figures

Details

ISSN :
13616471 and 09543899
Volume :
34
Database :
OpenAIRE
Journal :
Journal of Physics G: Nuclear and Particle Physics
Accession number :
edsair.doi.dedup.....de8317aded0d1119017f880069cb6593
Full Text :
https://doi.org/10.1088/0954-3899/34/3/001