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

et al; FOPI Collaboration: X. Lopez; N. Herrmann; P. Crochet

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Sub-threshold production of Sigma(1385) baryons in Al+Al collisions at 1.9A GeV

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arxiv 0710.5007 v1 pith:FGV3WFRJ submitted 2007-10-26 nucl-ex

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

FOPI Collaboration: X. Lopez , N. Herrmann , P. Crochet , et al This is my paper

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keywords productionsigmasub-thresholdpresentedstrangenessagreementallowbaryons

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abstract

First measurement of sub-threshold $\Sigma$(1385) production is presented. Experimental data are presented for Al+Al reactions at 1.9$A$ 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 sub-threshold strangeness production and strangeness exchange reaction which is the dominant process for $K^-$ production below and close-to threshold.

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

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