Temperature measurements for central Au+Au collisions at 35A MeV

被引：50

作者：

Huang, MJ

Xi, H

Lynch, WG

Tsang, MB

Dinius, JD

Gaff, SJ

Gelbke, CK

Glasmacher, T

Kunde, GJ

Martin, L

Montoya, CP

Scannapieco, E

Milazzo, PM

Azzano, M

Margagliotti, GV

Rui, R

Vannini, G

Colonna, N

Celano, L

Tagliente, G

DAgostino, M

Bruno, M

Fiandri, ML

Gramegna, F

Ferrero, A

Iori, I

Moroni, A

Petruzzelli, F

Mastinu, PF

机构：

[1] MICHIGAN STATE UNIV, DEPT PHYS & ASTRON, E LANSING, MI 48824 USA

[2] DIPARTIMENTO FIS, TRIESTE, ITALY

[3] IST NAZL FIS NUCL, TRIESTE, ITALY

[4] IST NAZL FIS NUCL, I-70126 BARI, ITALY

[5] DIPARTIMENTO FIS, BOLOGNA, ITALY

[6] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[7] IST NAZL FIS NUCL, LEGNANO, ITALY

[8] UNIV MILAN, DIPARTIMENTO FIS, MILAN, ITALY

[9] IST NAZL FIS NUCL, I-20133 MILAN, ITALY

[10] UNIV PADUA, DIPARTIMENTO FIS, PADUA, ITALY

[11] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.78.1648

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The breakup temperatures for central Au + Au collisions at 35A MeV have been determined from the relative populations of excited states of Li-5, He-4, and B-10 fragments and nine double ratios involving the yields of elements with 1 less than or equal to Z less than or equal to 6. Unlike results reported at significantly higher energies, all thermometers yield temperatures that an consistent within the experimental uncertainties. Extrapolation of thr data to zero impact parameter yields T-cm = 4.6 +/- 0.4 MeV, somewhat lower than the temperature assumed in statistical multifragmentation model calculations which describe most of the other features of this reaction.

引用

页码：1648 / 1651

页数：4

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