EXCITATION-ENERGY IN QUASI-ELASTIC AND TRANSFER-REACTIONS IN O-16+AU-197 AT INTERMEDIATE ENERGIES

被引：12

作者：

LAFOREST, R

DORE, D

POULIOT, J

ROY, R

STPIERRE, C

AUGER, G

BRICAULT, P

GROULT, S

PLAGNOL, E

HORN, D

机构：

[1] GANIL,CAEN,FRANCE

[2] AECL,RES CHALK RIVER LABS,CHALK RIVER K0J 1J0,ON,CANADA

[3] ISMRA UNIV,F-14050 CAEN,FRANCE

来源：

NUCLEAR PHYSICS A | 1994年 / 568卷 / 02期

关键词：

AU-197(O-16; X); E=50,70MEV NUCLEON; MEASURED SIGMA(FRAGMENT; (THETA)-COIN; SIGMA (PROJECTILE BREAKUP CHANNEL; Q); EXCITATION ENERGY DISTRIBUTIONS; DEDUCED REACTION MECHANISMS; MODEL CALCULATIONS;

D O I：

10.1016/0375-9474(94)90207-0

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：

Several breakup channels of an excited projectile were studied from measurements of charged fragments produced in peripheral collisions of O-16 on Au-197 at 50A and 70A MeV. Absolute fragmentation cross sections and projectile and target excitation energies were measured. An important result is that, with increasing incident energy, target excitation energy rises faster than projectile excitation. Transfer reactions were also examined and fragmentation cross sections in transfer reactions for many channels were estimated. Transfer reactions appear to have a fairly large cross section even at 70A MeV. These experimental results are compared to data at 32.5A MeV and systematic study of various parameters are presented for a wide range of the intermediate-energy domain.

引用

页码：350 / 364

页数：15

共 16 条

[1] PROTON-HELIUM CORRELATION IN 94 MEV NUCLEON O-16-INDUCED REACTIONS ON AL, NI, AND AU TARGETS [J].

BADALA, A ;

BARBERA, R ;

PALMERI, A ;

PAPPALARDO, GS ;

RIGGI, F ;

BIZARD, G ;

DURAND, D ;

LAVILLE, JL .

PHYSICAL REVIEW C, 1992, 45 (04) :1730-1744

[2] O-16 BREAKUP ON AL, NI AND AU TARGETS AT 94 MEV NUCLEON [J].

BADALA, A ;

BARBERA, R ;

PALMERI, A ;

PAPPALARDO, GS ;

RIGGI, F ;

POLLAROLO, G ;

DASSO, CH .

PHYSICS LETTERS B, 1993, 299 (1-2) :11-15

[3]

DELCAMPO JG, 1981, ORNLTM7295 LILITA RE

[4]

DELCAMPO JG, 1979, PHYS REV C, V19, P2170

[5]

DORE D, 1992, NUCL PHYS A, V545, pC363, DOI 10.1016/0375-9474(92)90476-Z

[6] KINEMATIC SIGNATURES OF THE PROJECTILE BREAKUP PROCESS AT 32.5 MEV NUCLEON [J].

HARMON, BA ;

POULIOT, J ;

LOPEZ, JA ;

SURO, J ;

KNOP, R ;

CHAN, Y ;

DIGREGORIO, DE ;

STOKSTAD, RG .

PHYSICS LETTERS B, 1990, 235 (3-4) :234-238

[7]

KNOP R, 1988, LBL26439 REP

[8] ON THE BREAKUP OF EXCITED O-16 PROJECTILES INTO 4 ALPHAS AT INTERMEDIATE ENERGIES [J].

POULIOT, J ;

DORE, D ;

LAFOREST, R ;

ROY, R ;

STPIERRE, C ;

LOPEZ, JA .

PHYSICS LETTERS B, 1993, 299 (3-4) :210-213

[9] EXCITATION AND MULTIPLE DISSOCIATION OF O-16, N-14 AND C-12 PROJECTILES AT 32.5 MEV PER NUCLEON [J].

POULIOT, J ;

CHAN, Y ;

DACAL, A ;

DIGREGORIO, DE ;

HARMON, BA ;

KNOP, R ;

ORTIZ, ME ;

PLAGNOL, E ;

STOKSTAD, RG ;

MOISAN, C ;

POTVIN, L ;

RIOUX, C ;

ROY, R .

PHYSICS LETTERS B, 1989, 223 (01) :16-20

[10] PERFORMANCE OF A PHOSWICH DETECTOR ARRAY FOR LIGHT PARTICLES AND HEAVY-IONS [J].

POULIOT, J ;

CHAN, Y ;

DACAL, A ;

HARMON, A ;

KNOP, R ;

ORTIZ, ME ;

PLAGNOL, E ;

STOKSTAD, RG .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 270 (01) :69-73

← 1 2 →