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

E917 Collaboration; B. B. Back; R. R. Betts; 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-Solis; A. Gillitzer; G. Heinzelman; W. F. Henning; D. J. Hofman; B. Holzman; J. H. Kang; E. J. Kim; S. Y. Kim; Y. Kwon; D. McLeod; A. C. Mignerey; M. Moulson; V. Nanal; C. A. Ogilvie; R. Pak; A. Ruangma; D. E. Russ; R. K. Seto; P. J. Stanskas; G. S. F. Stephans; H. Wang; F. L. H. Wolfs; A. H. Wuosmaa; H. Xiang; G. H. Xu; H. B. Yao; C. M. Zou

doi:10.1103/physrevlett.87.242301

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

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Abstract

We present results from Experiment E917 for antilambda and antiproton production in Au+Au collisions at 11.7 A GeV. We have measured invariant spectra and yields for both species in central and peripheral collisions. We find that the antilambda/antiproton ratio near mid-rapidity increases from 0.26+0.19-0.15 in peripheral collisions to 3.6+4.7-1.8 in central collisions, a value that is substantially larger than current theoretical estimates.

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E917 Collaboration, B. B. Back, R. R. Betts, 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-Solis, A. Gillitzer, G. Heinzelman, W. F. Henning, D. J. Hofman, B. Holzman, J. H. Kang, E. J. Kim, S. Y. Kim, Y. Kwon, D. McLeod, A. C. Mignerey, M. Moulson, V. Nanal, C. A. Ogilvie, R. Pak, A. Ruangma, D. E. Russ, R. K. Seto, P. J. Stanskas, G. S. F. Stephans, H. Wang, F. L. H. Wolfs, A. H. Wuosmaa, H. Xiang, G. H. Xu, H. B. Yao, C. M. Zou. 2001-01-23. Antilambda production in Au+Au collisions at 11.7 A GeV/c. https://doi.org/10.1103/physrevlett.87.242301

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