Subthreshold production of $\Sigma$(1385) baryons in Al+Al collisions at 1.9 A GeV

Abstract : First measurement of subthreshold Sigma(1385) production is presented. Experimental data are presented for Al+Al reactions at 1.9A GeV measured with the FOPI detector at SIS/GSI. The Sigma ( 1385) / Lambda ratio is found to be in good agreement with the transport and statistical model predictions. The results allow for a better understanding of subthreshold strangeness production and strangeness exchange reaction which is the dominant process for K- production below and close-to threshold.
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Journal articles
Physical Review C, American Physical Society, 2007, 76, pp.052203. <10.1103/PhysRevC.76.052203>


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Contributor : Jeanine Pellet <>
Submitted on : Friday, November 30, 2007 - 11:00:14 AM
Last modification on : Friday, November 30, 2007 - 2:00:17 PM

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X. Lopez, N. Herrmann, P. Crochet, A. Andronic, V. Barret, et al.. Subthreshold production of $\Sigma$(1385) baryons in Al+Al collisions at 1.9 A GeV. Physical Review C, American Physical Society, 2007, 76, pp.052203. <10.1103/PhysRevC.76.052203>. <in2p3-00193011>

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