INVERSION OF COLLECTIVE MATTER FLOW IN NUCLEUS-NUCLEUS COLLISIONS, MEASURED WITH A 4-PI CHARGED-PARTICLE ARRAY

	INVERSION OF COLLECTIVE MATTER FLOW IN NUCLEUS-NUCLEUS COLLISIONS, MEASURED WITH A 4-PI CHARGED-PARTICLE ARRAY
	PETER, J ; SULLIVAN, JP ; BIZARD, G ; SHEN, WQ ; BROU, R ; CUSSOL, D ; LOUVEL, M ; PATRY, JP ; REGIMBART, R ; STECKMEYER, JC
刊名	NUCLEAR PHYSICS A
	1992-03-02
卷号	538 页码:C75-C82
ISSN号	0375-9474
英文摘要	The multidetector array Mur + Tonneau has been used to perform a 4-pi detection of charged particles and fragments emitted in reactions between Ar-40, at energies ranging from 25 to 85 MeV/u, and Al-27 or Ni-58 target. The events have been sorted as a function of the impact parameter value. The collective transverse momentum in the reaction plane (sidewards flow parameter) is observed to strongly vary as a function of impact parameter and incident energy. At low energies, it is shown to be negative. It inverts to positive values at beam energies in the range 70-100 MeV/u depending on the impact parameter value and the mass of the system. These data are compared to dynamical calculations based on LVUU and QMD. In this energy range, the calculated flow values are much more sensitive to the nucleon-nucleon cross section in medium and to the equation of state than at relativistic energies; therefore, quantitative information can be obtained.
WOS关键词	IMPACT PARAMETER ; EMISSION ; MOTION ; ENERGY
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:A1992HM16900007
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/24596]
专题	中国科学院近代物理研究所
通讯作者	PETER, J
作者单位	1.GANIL,F-14021 CAEN,FRANCE 2.CENS,DPHN BE,F-91191 GIF SUR YVETTE,FRANCE 3.LAB PHYS NUCL,F-44072 NANTES,FRANCE 4.NAPLES UNIV,DIPARTIMENTO SCI FIS,I-80138 NAPLES,ITALY 5.SUNY STONY BROOK,STONY BROOK,NY 11794 6.INST MODERN PHYS,LANZHOU,PEOPLES R CHINA 7.TOKYO INST TECHNOL,INST PHYS,TOKYO 152,JAPAN 8.RIKKYO UNIV,TOKYO 171,JAPAN 9.UNIV SAO PAULO,INST FIS,SAO PAULO,BRAZIL 10.INST NUCL RES,SHANGHAI,PEOPLES R CHINA
推荐引用方式 GB/T 7714	PETER, J,SULLIVAN, JP,BIZARD, G,et al. INVERSION OF COLLECTIVE MATTER FLOW IN NUCLEUS-NUCLEUS COLLISIONS, MEASURED WITH A 4-PI CHARGED-PARTICLE ARRAY[J]. NUCLEAR PHYSICS A,1992,538:C75-C82.
APA	PETER, J.,SULLIVAN, JP.,BIZARD, G.,SHEN, WQ.,BROU, R.,...&MOTOBAYASHI, T.(1992).INVERSION OF COLLECTIVE MATTER FLOW IN NUCLEUS-NUCLEUS COLLISIONS, MEASURED WITH A 4-PI CHARGED-PARTICLE ARRAY.NUCLEAR PHYSICS A,538,C75-C82.
MLA	PETER, J,et al."INVERSION OF COLLECTIVE MATTER FLOW IN NUCLEUS-NUCLEUS COLLISIONS, MEASURED WITH A 4-PI CHARGED-PARTICLE ARRAY".NUCLEAR PHYSICS A 538(1992):C75-C82.