Isotopic Dependence of the Nuclear Caloric Curve

被引：76

作者：

Sfienti, C. ^{[1
]}

Adrich, P. ^{[1
]}

Aumann, T. ^{[1
]}

Bacri, C. O. ^{[2
,11
]}

Barczyk, T. ^{[3
]}

Bassini, R. ^{[4
,5
]}

Bianchin, S. ^{[1
]}

Boiano, C. ^{[4
,5
]}

Botvina, A. S. ^{[1
,6
]}

Boudard, A. ^{[7
]}

Brzychczyk, J. ^{[3
]}

Chbihi, A. ^{[8
,9
]}

Cibor, J. ^{[10
]}

Czech, B. ^{[10
]}

De Napoli, M.

Ducret, J. -E ^{[7
]}

Emling, H. ^{[1
]}

Frankland, J. D. ^{[8
,9
]}

Hellstroem, M. ^{[1
]}

Henzlova, D. ^{[1
]}

Imme, G.

Iori, I. ^{[4
,5
]}

Johansson, H. ^{[1
]}

Kezzar, K. ^{[1
]}

Lafriakh, A. ^{[7
]}

Le Fevre, A. ^{[1
]}

Le Gentil, E. ^{[7
]}

Leifels, Y. ^{[1
]}

Luehning, J. ^{[1
,10
]}

Lukasik, J. ^{[1
]}

Lynch, W. G.

Lynen, U. ^{[1
]}

Majka, Z. ^{[3
]}

Mocko, M.

Mueller, W. F. J. ^{[1
]}

Mykulyak, A.

Orth, H. ^{[1
]}

Otte, A. N. ^{[1
]}

Palit, R. ^{[1
]}

Pawlowski, P. ^{[10
]}

Pullia, A. ^{[4
,5
]}

Raciti, G.

Rapisarda, E.

Sann, H. ^{[1
]}

Schwarz, C. ^{[1
]}

Simon, H. ^{[1
]}

Suemmerer, K. ^{[1
]}

Trautmann, W. ^{[1
]}

Tsang, M. B.

Verde, G.

机构：

[1] Schwerionenforsch GmbH, GSI Helmholtzzentrum, D-64291 Darmstadt, Germany

[2] Univ Orsay, F-91406 Orsay, France

[3] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[4] Univ Milan, Ist Sci Fis, I-20133 Milan, Italy

[5] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[6] Inst Nucl Res, Moscow 117312, Russia

[7] CEA Saclay, DAPNIA SPhN, F-91191 Gif Sur Yvette, France

[8] CEA, GANIL, F-14076 Caen, France

[9] IN2P3 CNRS, F-14076 Caen, France

[10] IFJ PAN, PL-31342 Krakow, Poland

[11] IN2P3 CNRS, Inst Phys Nucl, F-91406 Orsay, France

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 15期

关键词：

COULOMB INSTABILITY; TEMPERATURE; FRAGMENTATION;

D O I：

10.1103/PhysRevLett.102.152701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The A/Z dependence of projectile fragmentation at relativistic energies has been studied with the ALADIN forward spectrometer at SIS. A stable beam of Sn-124 and radioactive beams of La-124 and Sn-107 at 600 MeV per nucleon have been used in order to explore a wide range of isotopic compositions. Chemical freeze-out temperatures are found to be nearly invariant with respect to the A/Z of the produced spectator sources, consistent with predictions for expanded systems. Small Coulomb effects (Delta T approximate to 0.6 MeV) appear for residue production near the onset of multifragmentation.

引用

页数：4

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