In-medium effects in strangeness production in heavy-ion collisions at (sub)threshold energies

Autor: J. Wirth, Joerg Aichelin, Elena Bratkovskaya, Taesoo Song, Laura Tolos
Přispěvatelé: Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), German Research Foundation, Russian Science Foundation, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, European Research Council, Agencia Estatal de Investigación (España)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
effective Lagrangian: chiral
heavy ion: scattering
Nuclear Theory
Particle interactions
1-2 GeV/nucleon
Strong interaction
01 natural sciences
nuclear matter: equation of state
Spectral line
energy: threshold
SU(3)
transport theory
angular distribution
Nuclear Experiment (nucl-ex)
Nuclear Experiment
Physics
production [strangeness]
Equation of state (cosmology)
Strangeness production
Observable
matter: effect
threshold [energy]
nuclear matter
flow
spectral representation
Particle physics
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]
QC1-999
FOS: Physical sciences
off-shell
Relativistic Nuclear Collisions
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Particle and resonance production
Momentum
Nuclear Theory (nucl-th)
scattering [heavy ion]
Relativistic heavy-ion collisions
0103 physical sciences
unitarity
coupled channel: unitarity
ddc:530
Rapidity
Sensitivity (control systems)
010306 general physics
numerical calculations
density [baryon]
010308 nuclear & particles physics
High Energy Physics::Phenomenology
baryon: density
Nuclear matter
rapidity
HADES
FOPI
High Energy Physics::Experiment
strangeness: production
chiral [effective Lagrangian]
Zdroj: Physical Review C
Physical Review C, American Physical Society, 2021, 103 (4), pp.044901. ⟨10.1103/PhysRevC.103.044901⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
The European physical journal / Web of Conferences 259, 13002 (2022). doi:10.1051/epjconf/202225913002
19th International Conference on Strangeness in Quark Matter, SQM2021, Online, United States, 2021-05-17-2021-05-22
EPJ Web of Conferences, Vol 259, p 13002 (2022)
ISSN: 2469-9985
2469-9993
DOI: 10.1103/PhysRevC.103.044901⟩
Popis: The 19th International Conference of Strangeness in Quark Matter (SQM 2021).
We study the in-medium effects in strangeness production in heavyion collisions at (sub-)threshold energies based on the microscopic Parton-Hadron-String Dynamics (PHSD) transport approach. The in-medium modifications of the antikaon properties are described via the self-consistent coupledchannel unitarized scheme based on a SU(3) chiral Lagrangian while the inmedium modification of kaons are accounted via the kaon-nuclear potential, which is assumed to be proportional to the local baryon density. We find that the modifications of (anti)kaon properties in nuclear matter are necessary to explain the experimental data in heavy-ion collisions.
The authors acknowledge support by the Deutsche Forschungsgemeinschaft (DFG,German Research Foundation): grantBR4000/7-1, by the Russian Science Foundation grant19-4204101 and by the GSI-IN2P3 agreement under contract number13-70. L.T. acknowledges support from the Deutsche Forschungsgemeinschaft (DFG,German research Foundation) under the Project Nr.383452331 (Heisenberg Programme), Nr.411563442 (Hot Heavy Mesons). Her research has been also supported by the Spanish Ministerio de Economía y Competitividad undercontract FPA2016-81114-P and Ministerio de Ciencia e Innovación under contractPID2019-110165GB-I00. This project has, furthermore, received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No824093 (STRONG-2020).
Databáze: OpenAIRE
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