This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1016/j.nuclphysa.2018.10.073 in citations.
Please use the identifier: http://hdl.handle.net/2128/24545 in citations.
Sub-threshold strangeness production measured with HADES
Sub-threshold strangeness production measured with HADES
At energies below root S-NN approximate to 2.55 GeV, strange quarks cannot be produced in binary nucleon-nucleon collisions because of the higher production threshold of the lightest hadrons carrying strangeness. Hence, the investigation of sub-threshold strangeness production in heavy-ion collision...
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Personal Name(s): | Kornakov, G. |
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HADES Collaboration / Ritman, James (Corresponding author) | |
Contributing Institute: |
Experimentelle Hadronstruktur; IKP-1 |
Published in: |
Nuclear physics |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2019
|
Physical Description: |
803-806 |
DOI: |
10.1016/j.nuclphysa.2018.10.073 |
Conference: | 27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter), Venice (Italy), 2018-05-13 - 2018-05-19 |
Document Type: |
Contribution to a conference proceedings Journal Article |
Research Program: |
Cosmic Matter in the Laboratory |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/24545 in citations.
At energies below root S-NN approximate to 2.55 GeV, strange quarks cannot be produced in binary nucleon-nucleon collisions because of the higher production threshold of the lightest hadrons carrying strangeness. Hence, the investigation of sub-threshold strangeness production in heavy-ion collisions is one of the most promising probes, to access the properties of the created system, as the missing energy must be provided by the latter one. For the first time, a nearly complete set of strange particles has been reconstructed in the 40% most central Au+Au collisions at. root S-NN = 2.42 GeV. The data sample includes multi-differential representations of charged and neutral particles containing strangeness (K-+/-,K-s(0), phi, Lambda). To achieve a better understanding of strangeness production the properties of the short-lived resonances have to be investigated. The first steps in this direction are presented here, including the reconstruction of baryon resonances using a new iterative technique, comparison to microscopic transport model calculations and interpretation of the pion transverse momentum distribution. |