Fusion suppression in mass-asymmetric reactions leading to Ra compound nuclei -: art. no. 014603

被引：81

作者：

Sagaidak, RN ^{[1
]}

Kniajeva, GN

Itkis, IM

Itkis, MG

Kondratiev, NA

Kozulin, EM

Pokrovsky, IV

Svirikhin, AI

Voskressensky, VM

Yeremin, AV

Corradi, L

Gadea, A

Latina, A

Stefanini, AM

Szilner, S

Trotta, M

Vinodkumar, AM

Beghini, S

Montagnoli, G

Scarlassara, F

Ackermann, D

Hanappe, F

Rowley, N

Stuttgé, L

机构：

[1] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Moscow Region, Russia

[2] Lab Nazl Legnaro, Ist Nazl Fis Nucl, I-35020 Legnaro, Padova, Italy

[3] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[4] Univ Padua, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[5] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[6] Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany

[7] Free Univ Brussels, PNTPM, B-1050 Brussels, Belgium

[8] Univ Louis Pasteur Strasbourg 1, IReS, UMR 7500, IN2P3 CNRS, F-67037 Strasbourg 2, France

来源：

PHYSICAL REVIEW C | 2003年 / 68卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.68.014603

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：

Near-barrier excitation functions have been measured for evaporation-residue production and fission in the C-12+Pb-204,Pb-206,Pb-208 and Ca-48+Er-168,Er-170 systems that lead to the compound nuclei Ra-216,Ra-218,Ra-220*. A pronounced suppression of evaporation-residue production is observed for the more symmetric combinations, Ca-48+Er-168,Er-170. We relate this to the significant quasifission components already observed for these systems.

引用

页码：146031 / 146035

页数：5

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