DISAPPEARANCE OF FLOW AND ITS RELEVANCE TO NUCLEAR-MATTER PHYSICS

被引：94

作者：

OGILVIE, CA

BAUER, W

CEBRA, DA

CLAYTON, J

HOWDEN, S

KARN, J

NADASEN, A

VANDERMOLEN, A

WESTFALL, GD

WILSON, WK

WINFIELD, JS

机构：

[1] MICHIGAN STATE UNIV, DEPT PHYS & ASTRON, E LANSING, MI 48823 USA

[2] MICHIGAN STATE UNIV, NATL SUPERCONDUCTING CYCLOTRON LAB, E LANSING, MI 48823 USA

来源：

PHYSICAL REVIEW C | 1990年 / 42卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.42.R10

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Light charged fragments from the reaction Ar40+51V at 35"85 MeV/nucleon in 10 MeV/nucleon steps have been measured with a 4 detector. The observed transverse collective momentum in central collisions decreases monotonically from 45 to 85 MeV/nucleon. The data are interpreted assuming that the attractive mean-field deflects the fragments to negative scattering angles. As the beam energy is raised, the attractive scattering is opposed by the buildup of compressed nuclear matter. A lower limit of 76 MeV/nucleon is placed on the beam energy where the attractive deflection is balanced by the repulsive side-splash mechanism. The results are compared to theoretical predictions and it is demonstrated the predictions are sensitive to two aspects of nuclear matter physics: the in-medium nucleon-nucleon cross section and the nuclear compressibility. © 1990 The American Physical Society.

引用

页码：R10 / R14

页数：5

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