Antilambda production in Au + Au collisions at 11.7A GeV/c

B. B. Back, J. Chang, W. C. Chang, C. Y. Chi, Y. Y. Chu, J. B. Cumming, J. C. Dunlop, W. Eldredge, S. Y. Fung, R. Ganz, E. Garcia, A. Gillitzer, G. Heintzelman, W. F. Henning, D. J. Hofman, B. Holzman, Ju Hwan Kang, E. J. Kim, S. Y. Kim, Youngil KwonD. McLeod, A. C. Mignerey, M. Moulson, V. Nanal, C. A. Ogilvie, R. Pak, A. Ruangma, D. E. Russ, R. Seto, P. J. Stanskas, G. S. Stephans, H. Wang, F. L. Wolfs, A. H. Wuosmaa, H. Xiang, G. H. Xu, H. B. Yao, C. M. Zou, R. R. Betts

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Abstract

The production of antilambda and antiproton in Au+Au collisions at 11.7A GeV/c was determined. The spectra and invariant yields for both species in central and peripheral collisions were obtained in the rapidity range 1.0<y<1.4. The direct antiproton yield was determined from the measurement of total antiproton spectra to extract the ratio of antilambda-to-direct-antiproton production. The ratio obtained near midrapidity was found to increase with a value larger than theoretical estimates.

Original languageEnglish
Article number242301
Pages (from-to)2423011-2423014
Number of pages4
JournalPhysical Review Letters
Volume87
Issue number24
Publication statusPublished - 2001 Dec 10

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Back, B. B., Chang, J., Chang, W. C., Chi, C. Y., Chu, Y. Y., Cumming, J. B., Dunlop, J. C., Eldredge, W., Fung, S. Y., Ganz, R., Garcia, E., Gillitzer, A., Heintzelman, G., Henning, W. F., Hofman, D. J., Holzman, B., Kang, J. H., Kim, E. J., Kim, S. Y., ... Betts, R. R. (2001). Antilambda production in Au + Au collisions at 11.7A GeV/c. Physical Review Letters, 87(24), 2423011-2423014. [242301].