COMPLETE ENERGY DAMPING IN 29 MEV/NUCLEON PB+AU 2-BODY FINAL-STATE REACTIONS

被引：22

作者：

BOUGAULT, R

LECOLLEY, JF

ABOUFIRASSI, M

BADALA, A

BILWES, B

BROU, R

COLIN, J

COSMO, F

DURAND, D

GALIN, J

GENOUXLUBAIN, A

GUERREAU, D

HORN, D

JACQUET, D

LAVILLE, JL

LEBRUN, C

LEFEBVRES, F

LOPEZ, O

LOUVEL, M

MAHI, M

MORJEAN, M

PAULOT, C

PEGHAIRE, A

RUDOLF, G

SCHEIBLING, F

STECKMEYER, JC

STUTTGE, L

TOMASEVIC, S

TAMAIN, B

机构：

[1] UNIV CAEN, F-14050 CAEN, FRANCE

[2] UNIV STRASBOURG 1, CTR RECH NUCL, CNRS, IN2P3, F-67037 STRASBOURG, FRANCE

[3] GANIL, DSM, CEA, CNRS, IN2P3, F-14021 CAEN, FRANCE

[4] UNIV PARIS 11, INST PHYS NUCL, CNRS, IN2P3, F-91406 ORSAY, FRANCE

来源：

NUCLEAR PHYSICS A | 1995年 / 587卷 / 03期

关键词：

AU-197(PB; X); E=29 MEV/NUCLEON; MEASURED FRAGMENT MULTIPLICITIES; DEDUCED TRANSIENT EXCITED DINUCLEAR SYSTEM FORMATION EVIDENCE;

D O I：

10.1016/0375-9474(95)00041-X

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：

Decay products emitted in highly dissipative Pb+Au reactions at 29 MeV/nucleon have been detected using a large area array. Multiplicities of fragments as large as 8 have been detected with a sizeable cross section. The m-fragment exit channels are fully compatible with the formation of a transient excited dinuclear system formed in damped collisions. The excitation energy function shows that fully damped collisions are achieved even for m = 2 indicating that heavy nuclei are able to sustain high excitation energy and end up as evaporation residues.

引用

页码：499 / 512

页数：14

共 30 条

[1]

ABGRALL P, COMMUNICATION

[2] A PLASTIC MULTIDETECTOR FOR LIGHT-NUCLEI IDENTIFICATION AT GANIL [J].

BIZARD, G ;

DROUET, A ;

LEFEBVRES, F ;

PATRY, JP ;

TAMAIN, B ;

GUILBAULT, F ;

LEBRUN, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1986, 244 (03) :483-489

[3] TIME-SCALES IN HEAVY-ION COLLISIONS AROUND THE FERMI ENERGY - LIMITS FOR THERMALIZATION OF HOT NUCLEI AND MULTIFRAGMENTATION [J].

BORDERIE, B .

ANNALES DE PHYSIQUE, 1992, 17 (04) :349-364

[4] DELF, A LARGE SOLID ANGLE DETECTION SYSTEM FOR HEAVY FRAGMENTS [J].

BOUGAULT, R ;

DUCHON, J ;

GAUTIER, JM ;

GENOUXLUBAIN, A ;

LEBRUN, C ;

LECOLLEY, JF ;

LEFEBVRES, F ;

LOUVEL, M ;

MOSRIN, P ;

REGIMBART, R .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1987, 259 (03) :473-479

[5]

BRESSON S, 1993, THESIS CAEN U

[6] A NEW APPROACH TO THE KINEMATIC COINCIDENCE METHOD IN HEAVY-ION REACTIONS [J].

CASINI, G ;

MAURENZIG, PR ;

OLMI, A ;

STEFANINI, AA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 277 (2-3) :445-457

[7] RESULTS ON 2-BODY, 3-BODY, AND 4-BODY EVENTS FROM THE MO-100+MO-100 AND SN-120+SN-120 COLLISIONS AROUND E/A = 20 MEV [J].

CHARITY, RJ ;

FREIFELDER, R ;

GOBBI, A ;

HERRMANN, N ;

HILDENBRAND, KD ;

RAMI, F ;

STELZER, H ;

WESSELS, JP ;

CASINI, G ;

MAURENZIG, PR ;

OLMI, A ;

STEFANINI, AA ;

GALIN, J ;

GUERREAU, D ;

JAHNKE, U ;

PEGHAIRE, A ;

ADLOFF, JC ;

BILWES, B ;

BILWES, R ;

RUDOLF, G ;

PETROVICI, M ;

GNIRS, M ;

PELTE, D .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 341 (01) :53-73

[8]

GADIOLI E, 1992, OXFORD STUDIES NUCLE, V15

[9] VOLUME VERSUS SURFACE SAMPLING OF MAXWELLIAN DISTRIBUTIONS IN NUCLEAR-REACTIONS [J].

GOLDHABER, AS .

PHYSICAL REVIEW C, 1978, 17 (06) :2243-2244

[10]

GROSS DHE, 1993, NUCL PHYS A, V553, pC175, DOI 10.1016/0375-9474(93)90622-5

← 1 2 3 →