Probing the nuclear liquid-gas phase transition
Fragment distributions resulting from Au+Au collisions at an incident energy of {ital E}/{ital A}=600 MeV are studied. From the measured fragment and neutron distributions the mass and the excitation energy of the decaying prefragments were determined. A temperature scale was derived from observed y...
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| Veröffentlicht in: | Physical Review Letters 1995-08, Vol.75 (6), p.1040-1043 |
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| container_title | Physical Review Letters |
| container_volume | 75 |
| creator | Pochodzalla, J Möhlenkamp, T Rubehn, T Schüttauf, A Wörner, A Zude, E Begemann-Blaich, M Blaich, T Emling, H Ferrero, A Gross, C Immé, G Iori, I, I Kunde, GJ Kunze, WD Lindenstruth, V, V Lynen, U Moroni, A Müller, WF Ocker, B Raciti, G Sann, H Schwarz, C Seidel, W Serfling, V, V Stroth, J Trautmann, W Trzcinski, A Tucholski, A Verde, G Zwieglinski, B |
| description | Fragment distributions resulting from Au+Au collisions at an incident energy of {ital E}/{ital A}=600 MeV are studied. From the measured fragment and neutron distributions the mass and the excitation energy of the decaying prefragments were determined. A temperature scale was derived from observed yield ratios of He and Li isotopes. The relation between this isotope temperature and the excitation energy of the system exhibits a behavior which is expected for a phase transition. The nuclear vapor regime takes over at an excitation energy of 10 MeV per nucleon, a temperature of 5 MeV, and may be characterized by a density of 0.15--0.3 normal nuclear density. |
| doi_str_mv | 10.1103/physrevlett.75.1040 |
| format | Article |
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From the measured fragment and neutron distributions the mass and the excitation energy of the decaying prefragments were determined. A temperature scale was derived from observed yield ratios of He and Li isotopes. The relation between this isotope temperature and the excitation energy of the system exhibits a behavior which is expected for a phase transition. The nuclear vapor regime takes over at an excitation energy of 10 MeV per nucleon, a temperature of 5 MeV, and may be characterized by a density of 0.15--0.3 normal nuclear density.</description><subject>DISTRIBUTION</subject><subject>EXCITATION</subject><subject>GASES</subject><subject>GEV RANGE 100-1000</subject><subject>GOLD 197 REACTIONS</subject><subject>GOLD 197 TARGET</subject><subject>HELIUM ISOTOPES</subject><subject>LIQUIDS</subject><subject>LITHIUM ISOTOPES</subject><subject>NEUTRONS</subject><subject>NUCLEAR FRAGMENTS</subject><subject>NUCLEAR MATTER</subject><subject>PHASE TRANSFORMATIONS</subject><subject>PHYSICS</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNpNkE1Lw0AURQdRbK3-AkHizk3a92aSTLKU4hcULKLrYTJ5aUbSJM1MCv33prQLV29xz70PDmP3CHNEEIuuOrie9jV5P5fxHCGCCzZFkFkoEaNLNgUQGGYAcsJunPsFAORJes0mCJAAZjBli3Xf5rbZBL6ioBlMTboParsbbBFutAu6SjsKfK8bZ71tm1t2Vera0d35ztjP68v38j1cfb59LJ9XoYki8GEEBegU81hyniManXEuTBzzPJWChCRRZGNMSQFSUpwXMU_LvCTMdYKRMGLGHk-7rfNWOWM9mcq0TUPGK0SeJenIPJ2Yrm93AzmvttYZqmvdUDs4hWmc8QR4mo2oOKGmb91orVRdb7e6PygEdbSp1qPNL9qvRptKxupoc2w9nB8M-ZaKf52TPvEHHbtyJg</recordid><startdate>19950807</startdate><enddate>19950807</enddate><creator>Pochodzalla, J</creator><creator>Möhlenkamp, T</creator><creator>Rubehn, T</creator><creator>Schüttauf, A</creator><creator>Wörner, A</creator><creator>Zude, E</creator><creator>Begemann-Blaich, M</creator><creator>Blaich, T</creator><creator>Emling, H</creator><creator>Ferrero, A</creator><creator>Gross, C</creator><creator>Immé, G</creator><creator>Iori, I, I</creator><creator>Kunde, GJ</creator><creator>Kunze, WD</creator><creator>Lindenstruth, V, V</creator><creator>Lynen, U</creator><creator>Moroni, A</creator><creator>Müller, WF</creator><creator>Ocker, B</creator><creator>Raciti, G</creator><creator>Sann, H</creator><creator>Schwarz, C</creator><creator>Seidel, W</creator><creator>Serfling, V, V</creator><creator>Stroth, J</creator><creator>Trautmann, W</creator><creator>Trzcinski, A</creator><creator>Tucholski, A</creator><creator>Verde, G</creator><creator>Zwieglinski, B</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>19950807</creationdate><title>Probing the nuclear liquid-gas phase transition</title><author>Pochodzalla, J ; 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From the measured fragment and neutron distributions the mass and the excitation energy of the decaying prefragments were determined. A temperature scale was derived from observed yield ratios of He and Li isotopes. The relation between this isotope temperature and the excitation energy of the system exhibits a behavior which is expected for a phase transition. The nuclear vapor regime takes over at an excitation energy of 10 MeV per nucleon, a temperature of 5 MeV, and may be characterized by a density of 0.15--0.3 normal nuclear density.</abstract><cop>United States</cop><pmid>10060190</pmid><doi>10.1103/physrevlett.75.1040</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Physical Review Letters, 1995-08, Vol.75 (6), p.1040-1043 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | DISTRIBUTION EXCITATION GASES GEV RANGE 100-1000 GOLD 197 REACTIONS GOLD 197 TARGET HELIUM ISOTOPES LIQUIDS LITHIUM ISOTOPES NEUTRONS NUCLEAR FRAGMENTS NUCLEAR MATTER PHASE TRANSFORMATIONS PHYSICS |
| title | Probing the nuclear liquid-gas phase transition |
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