The breakup temperatures for central Au+Au collisions at 35AMeV have been determined from the relative populations of excited states of 5Li, 4He, and 10B fragments and nine double ratios involving the yields of elements with 1≤Z≤6. Unlike results reported at significantly higher energies, all thermometers yield temperatures that are consistent within the experimental uncertainties. Extrapolation of the data to zero impact parameter yields Tem = 4.6±0.4MeV, somewhat lower than the temperature assumed in statistical multifragmentation model calculations which describe most of the other features of this reaction.
Temperature Measurements for Central Au+Au Collisions at A-35MeV / M. J., Huang; H., Xi; W. G., Lynch; M. B., Tsang; J. D., Dinius; S. J., Gaff; C. K., Gelbke; T., Glasmacher; G. J., Kunde; L., Martin; C. P., Montoya; E., Scannapieco; P. M., Milazzo; M., Azzano; Margagliotti, Giacomo; Rui, Rinaldo; G., Vannini; N., Colonna; L., Celano; G., Tagliente; M., D’Agostino; M., Bruno; M. L., Fiandri; F., Gramegna; A., Ferrero; I., Iori; A., Moroni; F., Petruzzelli; P. F., Mastinu. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 78:(1997), pp. 1648-1651. [10.1103/PhysRevLett.78.1648]
Temperature Measurements for Central Au+Au Collisions at A-35MeV
MARGAGLIOTTI, GIACOMO;RUI, RINALDO;
1997-01-01
Abstract
The breakup temperatures for central Au+Au collisions at 35AMeV have been determined from the relative populations of excited states of 5Li, 4He, and 10B fragments and nine double ratios involving the yields of elements with 1≤Z≤6. Unlike results reported at significantly higher energies, all thermometers yield temperatures that are consistent within the experimental uncertainties. Extrapolation of the data to zero impact parameter yields Tem = 4.6±0.4MeV, somewhat lower than the temperature assumed in statistical multifragmentation model calculations which describe most of the other features of this reaction.Pubblicazioni consigliate
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