Abstract
The yield for the multistrange Xi(-) hyperon has been measured in 6A GeV Au+Au collisions via reconstruction of its decay products pi(-) and Lambda, the latter also being reconstructed from its daughter tracks of pi(-) and p. The measurement is rather close to the threshold for Xi(-) production and therefore provides an important test of model predictions. The measured yield for Xi(-) and Lambda are compared for several centralities. In central collisions the Xi(-) yield is found to be in excellent agreement with statistical and transport model predictions, suggesting that multistrange hadron production approaches chemical equilibrium in high baryon density nuclear matter.
Published in:
Physical Review Letters 91,20 (2003) 202301;
Link to original published article:
http://dx.doi.org/10.1103/PhysRevLett.91.202301
Keywords
heavy-ion collisions;; nucleus-nucleus collisions;; central pb+pb collisions;; quark-gluon plasma;; plus au collisions;; pb-pb collisions;; strangeness enhancement;; energies;; ags;; equilibration
Date of Version
January 2003
Recommended Citation
Chung, P.; Ajitanand, N. N.; Alexander, J. M.; Anderson, M.; Best, D.; Brady, F. P.; Case, T.; Caskey, W.; Cebra, D.; Chance, J. L.; Cole, B.; Crowe, K.; Das, A. C.; Draper, J. E.; Gilkes, M. L.; Gushue, S.; Heffner, M.; Hirsch, A. S.; Hjort, E. L.; Holzmann, W.; Huo, L.; Issah, M.; Justice, M.; Kaplan, M.; Keane, D.; Kintner, J. C.; Klay, J.; Krofcheck, D.; Lacey, R. A.; Lauret, J.; Lisa, M. A.; Liu, H.; Liu, Y. M.; Milan, J.; McGrath, R.; Milosevich, Z.; Odyniec, G.; Olson, D. L.; Panitkin, S.; Porile, N. T.; Rai, G.; Ritter, H. G.; Romero, J. L.; Scharenberg, R.; Srivastava, B.; Stone, N. T. B.; Symons, T. J. M.; Taranenko, A.; Whitfield, J.; Wienold, T.; Witt, R.; Wood, L.; Zhang, W. N.; and Oeschler, H., "Near-threshold production of the multistrange Xi(-) hyperon" (2003). Department of Physics and Astronomy Faculty Publications. Paper 578.
https://docs.lib.purdue.edu/physics_articles/578