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Temperatures of exploding nuclei (Articolo in rivista)

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V. Serfling, C.Schwarz, R.Bassini, M.Begemann-Blaich, S.Fritz, S.J.Gaff, C.Groß, G.Immè, I.Iori, U.Kleinevoß, G.J.Kunde, W.D.Kunze, U.Lynen, V.Maddalena, M.Mahi, T.Mòhlenkarnp, A.Moroni, W.F.J.Müller, C.Nociforo, B.Ocker, T.Odeh, F.Petruzzelli, J.Pochodzalla, G.Raciti, G.Riccobene, F.P.Romano, Th.Rubehn, A.Saija, M.Schnittker, A.Schüttauf, W.Seidel, C.Sfienti, W.Trautmann, A.Trzcinski, G.Verde, A.Wörner, Hongfei Xi, B.Zwieglinski (1998)
Temperatures of exploding nuclei
in Physical review letters (Print); American Physical Society (APS), College Pk (Stati Uniti d'America)
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V. Serfling, C.Schwarz, R.Bassini, M.Begemann-Blaich, S.Fritz, S.J.Gaff, C.Groß, G.Immè, I.Iori, U.Kleinevoß, G.J.Kunde, W.D.Kunze, U.Lynen, V.Maddalena, M.Mahi, T.Mòhlenkarnp, A.Moroni, W.F.J.Müller, C.Nociforo, B.Ocker, T.Odeh, F.Petruzzelli, J.Pochodzalla, G.Raciti, G.Riccobene, F.P.Romano, Th.Rubehn, A.Saija, M.Schnittker, A.Schüttauf, W.Seidel, C.Sfienti, W.Trautmann, A.Trzcinski, G.Verde, A.Wörner, Hongfei Xi, B.Zwieglinski (literal)

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1Gesellschaft für Schwerionenforschung, D-64291 Darmstadt, Germany 2Istituto di Scienze Fisiche, Università degli Studi di Milano and I.N.F.N., I-20133 Milano, Italy 3Depart. of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 4Dipartimento di Fisica dell' Università and I.N.F.N., I-95129 Catania, Italy 5Forschungszentrum Rossendorf, D-01314 Dresden, Germany 6Institut für Kernphysik, Universität Frankfurt, D-60486 Frankfurt, Germany 7Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany 8Soltan Institute for Nuclear Studies, 00-681 Warsaw, Hoza 69, Poland (literal)

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Breakup temperatures in central collisions of 197Au+197Au at bombarding energies E/A = 50 to 200 MeV were determined with two methods. Isotope temperatures, deduced from double ratios of hydrogen, helium, and lithium isotopic yields, increase monotonically with bombarding energy from 5 to 12 MeV, in qualitative agreement with a scenario of chemical freeze-out after adiabatic expansion. Excited-state temperatures, derived from yield ratios of states in 4He, 5,6Li, and 8Be, are about 5 MeV, independent of the projectile energy, and seem to reflect the internal temperature of fragments at their final separation from the system. (literal)

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