An investigation of the antinuclei and nuclei production mechanism in Pb plus Pb collisions at 158 A GeV -: art. no. 150

被引：12

作者：

Arsenescu, R

Baglin, C

Beck, HP

Borer, K

Bussière, A

Elsener, K

Gorodetzky, P

Guillaud, JP

Kabana, S

Klingenberg, R

Lehmann, G

Lindén, T

Lohmann, KD

Mommsen, R

Moser, U

Pretzl, K

Schacher, J

Spiwoks, R

Tuominiemi, J

Weber, M

机构：

[1] Univ Bern, Lab Hochenergiephys, CH-3012 Bern, Switzerland

[2] CNRS, IN2P3, LAPP Annecy, F-74941 Annecy Le Vieux, France

[3] CERN, SL Div, CH-1211 Geneva 23, Switzerland

[4] Coll France, PCC, F-75005 Paris, France

[5] Helsinki Inst Phys, FIN-00014 Helsinki, Finland

来源：

NEW JOURNAL OF PHYSICS | 2003年 / 5卷

关键词：

D O I：

10.1088/1367-2630/5/1/150

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the production mechanisms of p, d, t, He-3, He-4, Li-6, (p) over bar, (d) over bar and (He-3) over bar in Pb+Pb collisions at 158 A GeV measured near zero transverse momentum with the NA52 experiment at the CERN SPS. We find evidence that nuclei and antinuclei in Pb+Pb collisions are mainly produced via the coalescence mechanism out of a thermalized source of hadrons, at a time close to the thermal freeze-out of hadrons corresponding to a temperature of similar to120 MeV.

引用

页数：23

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