FUSION AND EMISSION OF H-1 AND HE-4 IN REACTIONS BETWEEN COMPLEX NUCLEI AT HIGH-ENERGIES

被引：37

作者：

DELAGRANGE, H

LOGAN, D

RIVET, MF

RAJAGOPALAN, M

ALEXANDER, JM

ZISMAN, MS

KAPLAN, M

BALL, JW

机构：

[1] CARNEGIE MELLON UNIV,DEPT CHEM,PITTSBURGH,PA 15213

[2] SUNY STONY BROOK,DEPT CHEM,STONY BROOK,NY 11794

[3] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.43.1490

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured cross sections for evaporation residues, fission, and direct and evaporative He1 and He4 in reactions of 222-340-MeV Ar40 with Sn116, Sm154, Dy164, and Au197. Fusion cross sections are also presented for 77-167-MeV C12 + W182 and 187-MeV Ar40 + Sn116. The Z dependence of the evaporative H/He indicates a breakdown of phase-space models for fission-evaporation competition. The large cross sections observed for direct H/He emission force serious consideration of energy dissipation by H/He ejection during the initial impact. © 1979 The American Physical Society.

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页码：1490 / 1493

页数：4

相关论文

共 29 条

[1] RECOIL STUDY OF TRANSFER-REACTIONS - EVIDENCE FOR ALPHA AND BE-8 TRANSFERS IN C-12 REACTIONS WITH HEAVY NUCLEI (AU,BI) [J].

BIMBOT, R ;

RIVET, MF ;

GARDES, D .

NUCLEAR PHYSICS A, 1972, A189 (01) :193-&

[2] HEAVY-ION FUSION BASED ON PROXIMITY POTENTIAL AND ONE-BODY FRICTION [J].

BIRKELUND, JR ;

HUIZENGA, JR ;

DE, JN ;

SPERBER, D .

PHYSICAL REVIEW LETTERS, 1978, 40 (17) :1123-1127

[3] ARGON-INDUCED AND KRYPTON-INDUCED REACTIONS AT ENERGIES OF 4-7 MEV/AMU [J].

BRITT, HC ;

ERKKILA, BH ;

STOKES, RH ;

GUTBROD, HH ;

PLASIL, F ;

FERGUSON, RL ;

BLANN, M .

PHYSICAL REVIEW C, 1976, 13 (04) :1483-1495

[4] ALPHA PARTICLES AND PROTONS EMITTED IN BOMBARDMENT OF AU197 AND BI209 BY C12, N14, AND O16 PROJECTILES [J].

BRITT, HC ;

QUINTON, AR .

PHYSICAL REVIEW, 1961, 124 (03) :877-&

[5] EXCITATION-ENERGY DEPENDENCE OF THE LEVEL DENSITY FOR FISSIONABLE NUCLEI [J].

CARJAN, N ;

DELAGRANGE, H ;

FLEURY, A .

PHYSICAL REVIEW C, 1979, 19 (06) :2267-2273

[6] MECHANISM OF FORMATION AND DECAY OF COMPOUND NUCLEI GD-150 PRODUCED BY 2 ENTRANCE CHANNELS (O-16+BA134) AND (AR-40+PD110) [J].

NEGRA, SD ;

GAUVIN, H ;

JUNGCLAS, H ;

BEYEC, YL ;

LEFORT, M .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1977, 282 (01) :65-73

[7] REACTIONS BETWEEN MEDIUM AND HEAVY-NUCLEI AND HEAVY-IONS OF LESS THAN 15 MEV-AMU [J].

FLEURY, A ;

ALEXANDER, JM .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1974, 24 :279-339

[8] GAS IONIZATION COUNTER FOR PARTICLE IDENTIFICATION [J].

FOWLER, MM ;

JARED, RC .

NUCLEAR INSTRUMENTS & METHODS, 1975, 124 (02) :341-347

[9] STUDY OF CHARGED-PARTICLES EMITTED FROM TE-117 COMPOUND NUCLEI .2. COMPARISON BETWEEN AR-40+SE-77 AND N-14+RH-103 REACTIONS AND DETERMINATION OF CRITICAL ANGULAR MOMENTA [J].

GALIN, J ;

GATTY, B ;

GUERREAU, D ;

ROUSSET, C ;

SCHLOTTH.UC ;

TARRAGO, X .

PHYSICAL REVIEW C, 1974, 9 (03) :1126-1137

[10] STUDY OF CHARGED-PARTICLES EMITTED FROM TE-117 COMPOUND NUCLEI .1. ARGON-INDUCED REACTIONS [J].

GALIN, J ;

GATTY, B ;

GUERREAU, D ;

ROUSSET, C ;

SCHLOTTH.UC ;

TARRAGO, X .

PHYSICAL REVIEW C, 1974, 9 (03) :1113-1125