. A restoration of chiral sy
in various approaches. This suggests the hadrons to beco
e equal. In this respect we study the properties of hadrons – as produced in relativistic nucleus–nucleus collisions – by
eans of a covariant hadronic transport approach where scalar and vector hadron self-energies are taken into account explicitly which are
s of effective chiral Lagrangians. Within this transport approach we investigate the reaction dyna
GeV). Whereas
substantially, antiprotons and antikaons do show sizeable attractive self-energies as can be extracted fro
ental abundancies and spectra. The properties of the vector
at finite baryon density are investigated by their dileptonic decay; the CERES and HELIOS-3 data at SPS energies are found to be inco
ass scenario. Here, a description by dropping
asses leads to a very good reproduction of the data, however, also approaches based on
patible with the present dilepton spectra at SPS energies. Constraints fro
es as well as a variety of further observables that allow to disentangle the different scenarios experi
entally. Further
production and suppression in proton–nucleus and nucleus–nucleus collisions is investigated within the transport approach in order to probe a possible transition to a quark-gluon plas
a (QGP) phase. We finally discuss opti
a.
Cited by: | - Larionov, A.B.; Cassing, W.; Leupold, S.; Mosel, U.,""Quenching of resonance production in heavy-ion collisions at 1-2AGeV""Nuclear Physics A2001pp. 747-760
Bibliographic Pagem =pdf&file=file.pdf"">Full TextBratkovskaya, E.L.,""e+e- production in pA reactions at SIS energies""Nuclear Physics A2001pp. 761-787 Bibliographic Pagem=pdf&file=file.pdf"">Full TextCieply, A.; Friedman, E.; Gal, A.; Mares, J.,""Study of chirally motivated low-energy K- optical potentials""Nuclear Physics A2001pp. 173-193 mlkop"">Bibliographic Pagemlkop&form=pdf&file=file.pdf"">Full TextCassing, W.; Kondratyuk, L.A.; Lykasov, G.I.; Rzjanin, M.V.,""Open charm enhancement by secondary interactions in relativistic nucleus-nucleus collisions?""Physics Letters B2001pp. 1-8 Bibliographic Pagem=pdf&file=file.pdf"">Full TextCassing, W.; Bratkovskaya, E.L.; Sibirtsev, A.,""Open charm production in relativistic nucleus-nucleus collisions""Nuclear Physics A2001pp. 753-778 Bibliographic Pagem=pdf&file=file.pdf"">Full TextBratkovskaya, E.L.; Cassing, W.; Greiner, C.; Effenberger, M.; Mosel, U.; Sibirtsev, A.,""Thermal and chemical equilibration of hadronic matter""Nuclear Physics A2001pp. 84c-91c m"">Bibliographic Pagem&form=pdf&file=file.pdf"">Full TextRai, G.,""Hadronic flow in 2-8 a GeV Au+Au collisions""Nuclear Physics A2001pp. 181c-189c Bibliographic Pagem=pdf&file=file.pdf"">Full TextBratkovskaya, E.L.; Cassing, W.; Mosel, U.,""Perspectives of e+e- production in pp, pd and pBe reactions at SIS energies2""Nuclear Physics A2001pp. 568-588 Bibliographic Pagem=pdf&file=file.pdf"">Full TextSahu, P.K.; Cassing, W.,""Differential flow of protons in Au+Au collisions at AGS energies""Nuclear Physics A2002pp. 357-369 Bibliographic Pagem=pdf&file=file.pdf"">Full TextMoskal, P.; Wolke, M.; Khoukaz, A.; Oelert, W.,""Close-to-threshold meson production in hadronic interactions""Progress in Particle and Nuclear Physics2002pp. 1-90 mpihi"">Bibliographic Pagempihi&form=pdf&file=file.pdf"">Full TextWeber, H.; Bratkovskaya, E.L.; Stocker, H.,""Nucleus-nucleus collisions at high baryon densities""Physics Letters B2002pp. 285-290 Bibliographic Pagem=pdf&file=file.pdf"">Full TextCassing, W.; Bratkovskaya, E.L.; Hansen, O.,""Probing hadronic formation times with antiprotons in p+A reactions at AGS energies""Nuclear Physics A2002pp. 224-238 Bibliographic Pagem=pdf&file=file.pdf"">Full TextNekipelov, M.; Buscher, M.; Cassing, W.; Hartmann, M.; Hejny, V.; Kleber, V.; Koch, H.R.; Koptev, V.; Maeda, Y.; Maier, R.; Merzliakov, S.; Mikirtychiants, S.; Ohm, H.; Petrus, A.; Prasuhn, D.; Rathmann, F.; Rudy, Z.; Schleichert, R.; Schneider, H.; Sistemich, K.; Stein, H.J.; Stroher, H.; Watzlawik, K.-H.; Wilkin, C.,""Evidence of kaon nuclear and Coulomb potential effects on soft K+ production from nuclei""Physics Letters B2002pp. 207-212 Bibliographic Pagem=pdf&file=file.pdf"">Full TextBratkovskaya, E.L.,""/ properties from dilepton spectra in pA reactions at 12 GeV""Physics Letters B2002pp. 26-35 Bibliographic Pagem=pdf&file=file.pdf"">Full TextCassing, W.,""Antibaryon production in hot and dense nuclear matter""Nuclear Physics A2002pp. 618-646 m"">Bibliographic Pagem&form=pdf&file=file.pdf"">Full TextMornas, L.; Gallego, E.; Perez, A.,""Nucleon-nucleon effective potential in dense matter including rho-meson exchange""Nuclear Physics A2002pp. 579-623 mire"">Bibliographic Pagemire&form=pdf&file=file.pdf"">Full TextXu, Xiao-Ming,""J/ Productions in nucleus-nucleus collisions at RHIC and LHC energies""Nuclear Physics A2002pp. 825-878 Bibliographic Pagem=pdf&file=file.pdf"">Full TextMuto, Takumi,""Kaonic modes in hyperonic matter and p-wave kaon condensation""Nuclear Physics A2002pp. 225-254 mihmapkc"">Bibliographic Pagemihmapkc&form=pdf&file=file.pdf"">Full TextCassing, W.; Tolos, L.; Bratkovskaya, E.L.; Ramos, A.,""Antikaon production in A+A collisions at SIS energies within an off-shell G-matrix approach""Nuclear Physics A2003pp. 59-94 Bibliographic Pagem=pdf&file=file.pdf"">Full TextLarionov, A.B.; Mosel, U.,""The NNND cross section in nuclear matter""Nuclear Physics A2003pp. 135-164 m"">Bibliographic Pagem&form=pdf&file=file.pdf"">Full TextRai, G.; Ajitanand, N.N.; Alexander, J.; Anderson, M.; Best, D.; Brady, F.P.; Case, T.; Caskey, W.; Cebra, D.A.; Chance, J.L.; Chung, P.; Cole, B.; Crowe, K.; Das, A.; Draper, J.E.; Gilkes, M.L.; Gushue, S.; Heffner, M.; Hirsch, A.S.; Hjort, E.L.; Huo, L.; Justice, M.; Kaplan, M.; Keane, D.; Kintner, J.; Klay, J.; Krofcheck, D.; Lacey, R.; Lisa, M.A.; Liu, H.; Liu, Y.M.; McGrath, R.; Milosevich, Z.; Odyniec, G.; Olson, D.L.; Panitkin, S.Y.; Pinkenburg, C.; Porile, N.T.; Ritter, H.G.; Romero, J.L.; Scharenberg, R.; Schroeder, L.S.; Srivastava, B.K.; Stone, N.T.B.; Symons, T.J.M.; Wang, S.; Wells, R.; Whitfield, J.; Wienold, T.; 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Bottcher, I.; Debowski, M.; Dohrmann, F.; Forster, A.; Grosse, E.; Koczon, P.; Kohlmeyer, B.; Laue, F.; Naumann, L.; Oeschler, H.; Puhlhofer, F.; Schwab, E.; Senger, P.; Shin, Y.; Strobele, H.; Sturm, C.; Surowka, G.; Uhlig, F.; Wagner, A.; Walus, W.,""First measurement of antikaon phase-space distributions in nucleus-nucleus collisions at subthreshold beam energies""Physics Letters B2000pp. 26-32 moapdncasbe"">Bibliographic Pagemoapdncasbe&form=pdf&file=file.pdf"">Full TextAlam, Jan-e; Sarkar, Sourav; Roy, Pradip; Hatsuda, T.; Sinha, Bikash,""Thermal Photons and Lepton Pairs from Quark Gluon Plasma and Hot Hadronic Matter""Annals of Physics2000pp. 159-248 m"">Bibliographic Pagem&form=pdf&file=file.pdf"">Full Text |