Kaon Flow as a Probe of the Kaon Potential in Nuclear Medium

Li, G. Q.; Ko, Che Ming; Li, Bao-An

doi:10.1103/physrevlett.74.235

Cited by 145 publications

(190 citation statements)

References 46 publications

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“…On the other hand, the ratio, K + /K − , and especially the shapes of its transverse mass spectra and rapidity distribution, is less sensitive to the elementary cross sections, and should be able to provide more definite information about kaon in-medium properties. Also, the collective flow signals of K + and K − [102][103][104] in heavy-ion collisions are very useful probes of kaon medium effects.…”

Section: Discussionmentioning

confidence: 99%

Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars

1997

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The recent past witnesses the growing interdependence between the physics of hadrons, the physics of relativistic heavy-ion collisions, and the physics of compact objects in astrophysics. A notable example is the kaon which plays special roles in all the three fields. In this paper, we first review the various theoretical investigations of kaon properties in nuclear medium, focusing on possible uncertainties in each model. We then present a detailed transport model study of kaon production in heavy-ion collisions at SIS energies. We shall discuss especially the elementary kaon and antikaon production cross sections in hadron-hadron interactions, that represent one of the most serious uncertainties in the transport model study of particle production in heavy-ion collisions. The main purpose of such a study is to constrain kaon in-medium properties from the heavy-ion data. This can provide useful guidances for the development of theoretical models of the kaon in medium. In the last part of the paper, we apply the kaon in-medium properties extracted from heavy-ion data to the study of neutron star properties. Based on a conventional equation of state of nuclear matter that can be considered as one of the best constrained by available experimental data on finite nuclei, we find that the maximum mass of neutron stars is about 2M⊙, which is reduced to about 1.5M⊙ once kaon condensation as constrained by heavy-ion data is introduced.pacs: 25.75. Dw, 97.60.Jd, 26.60.+c, 24.10.Lx

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Section: Discussionmentioning

confidence: 99%

Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars

1997

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“…We should point out that these results on kaons might be relatively rough since we do not consider any kaon-nucleon meanfield potential [35,36,37]. As far as we know, there is no explicit calculation about the difference of K + -and K 0 -nucleon potentials in the nuclear medium.…”

Section: Effects Of the Symmetry Potential On The Dynamics Of Numentioning

confidence: 99%

Probing the density dependence of the symmetry potential in intermediate-energy heavy ion collisions

Li¹,

Li²,

Soff³

et al. 2005

J. Phys. G: Nucl. Part. Phys.

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Based on the ultrarelativistic quantum molecular dynamics (UrQMD) model, the effects of the density-dependent symmetry potential for baryons and of the Coulomb potential for produced mesons are investigated for neutron-rich heavy ion collisions at intermediate energies. The calculated results of the ∆ − /∆ ++ and π − /π + production ratios show a clear beam-energy dependence on the density-dependent symmetry potential, which is stronger for the π − /π + ratio close to the pion production threshold. The Coulomb potential of the mesons changes the transverse momentum distribution of the π − /π + ratio significantly, though it alters only slightly the π − and π + total yields. The π − yields, especially at midrapidity or at low transverse momenta and the π − /π + ratios at low transverse momenta, are shown to be sensitive probes of the density-dependent symmetry potential in dense nuclear matter. The effect of the density-dependent symmetry potential on the production of both, K 0 and K + mesons, is also investigated. † DFG Mercator Guest Professor.

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“…Azimuthal anisotropies in kaon production are predicted to be sensitive probes of the kaon potential in a dense nuclear medium [10]. In Fig.…”

Section: Flow Of Identified Particlesmentioning

confidence: 99%

Recent results from E877 for Au+Au collisions at AGS energy

FILIMONOV¹

1999

Nuclear Physics A

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Kaon Flow as a Probe of the Kaon Potential in Nuclear Medium

Cited by 145 publications

References 46 publications

Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars

Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars

Probing the density dependence of the symmetry potential in intermediate-energy heavy ion collisions

Recent results from E877 for Au+Au collisions at AGS energy

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