Subthreshold production of {sigma}(1385) baryons in Al+Al collisions at 1.9A GeV

Journal Article · Thu Nov 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.052203· OSTI ID:21067875

Lopez, X; Andronic, A; Hartmann, O N; Hildenbrand, K D; Kim, Y J; Koczon, P; Leifels, Y; Reisdorf, W; Schuettauf, A ^[1]; Herrmann, N; Benabderrahmane, M L; Cordier, E; Merschmeyer, M; Pelte, D ^[2]; Crochet, P; Barret, V; Bastid, N; Dupieux, P ^[3]; Basrak, Z; Caplar, R ^[4]

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1. Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany)
2. Physikalisches Institut der Universitaet Heidelberg, Heidelberg (Germany)
3. Laboratoire de Physique Corpusculaire, IN2P3/CNRS, and Universite Blaise Pascal, Clermont-Ferrand (France)
4. Ruder Boskovic Institute, Zagreb (Croatia)

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{sup -} production below and close-to threshold.

• OSTI ID: 21067875
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 76, Issue 5; Other Information: DOI: 10.1103/PhysRevC.76.052203; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). FOPI Collaboration; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 REACTIONS
ALUMINIUM 27 TARGET
GEV RANGE
KAONS MINUS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
SIGMA-1385 BARYONS
SIS SYNCHROTRON
STATISTICAL MODELS
STRANGENESS
STRANGENESS-EXCHANGE REACTIONS