Baryon and antibaryon production in lead-lead collisions at 158AGeV/c

被引：43

作者：

Ambrosini, G

Arsenescu, R

Baglin, C

Beringer, J

Bohm, C

Borer, K

Bussiere, A

Dittus, F

Elsener, K

Frei, D

Gorodetzky, P

Guillaud, JP

Hess, P

Hugentobler, E

Kabana, S

Klingenberg, R

Linden, T

Lohmann, KD

Mommsen, R

Moser, U

Pal, T

Pretzl, K

Schacher, J

Sellden, B

Stoffel, F

Tuominiemi, J

Weber, M

Zhang, QP

机构：

[1] Univ Bern, High Energy Phys Lab, CH-3012 Bern, Switzerland

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

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

[4] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[5] Univ Stockholm, Dept Phys, S-11385 Stockholm, Sweden

[6] Ctr Rech Nucl, IN2P3, CNRS, F-67037 Strasbourg, France

来源：

PHYSICS LETTERS B | 1998年 / 417卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(97)01383-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on baryon and antibaryon as well as K+ and K- production cross sections measured in lead-lead collisions at 158 GeV/c per nucleon, The presented data were taken at zero degree production angle with a minimum bias trigger. The measurements covered a wide range of rapidity 1.4 < y < 6.0, Using a simple thermodynamical and a coalescence model the temperature and the chemical potential of the particle source as well as the freeze-out radius of baryons and antibaryons have been deduced. (C) 1998 Elsevier Science B.V.

引用

页码：202 / 210

页数：9

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