EVIDENCE FOR ELASTOPLASTICITY IN DISSIPATIVE HEAVY-ION COLLISIONS

被引：18

作者：

RHEIN, M ^{[1
]}

BARTH, R ^{[1
]}

DITZEL, E ^{[1
]}

FELDMEIER, H ^{[1
]}

KANKELEIT, E ^{[1
]}

LIPS, V ^{[1
]}

MUNTZ, C ^{[1
]}

NORENBERG, W ^{[1
]}

OESCHLER, H ^{[1
]}

PIECHACZEK, A ^{[1
]}

POLAI, W ^{[1
]}

SCHALL, I ^{[1
]}

机构：

[1] GESELL SCHWERIONENFORSCH GMBH,W-6100 DARMSTADT,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.69.1340

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From the measured yield of delta-electrons with energies between 3 and 8 MeV, emitted in the heavy-ion reaction Pb+Pb at 12 MeV/nucleon incident energy, a very fast deceleration of the nuclei in the approach phase is inferred which is much faster than predicted by the microscopic one-body dissipation model. Since the deceleration time is smaller than or comparable to the thermal equilibration time, the dissipation process is non-Markovian and therefore memory effects have to be included. This is performed on the basis of dissipative diabatic dynamics, which describes elastoplastic properties. The new diabatic one-body dissipation model reproduces the fast deceleration and the long nuclear contact time.

引用

页码：1340 / 1343

页数：4

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