PROTON AND SUBTHRESHOLD PION-PRODUCTION CORRELATED WITH LIGHT FRAGMENTS - A STATISTICAL PROCESS

被引：3

作者：

LAVILLE, JL ^{[1
]}

BADALA, A ^{[1
]}

BARBERA, R ^{[1
]}

BIZARD, G ^{[1
]}

BOUGAULT, R ^{[1
]}

DURAND, D ^{[1
]}

PALMERI, A ^{[1
]}

PAPPALARDO, GS ^{[1
]}

RIGGI, F ^{[1
]}

机构：

[1] UNIV CATANIA, IST NAZL FIS NUCL, SEZ CATANIA, I-95129 CATANIA, ITALY

来源：

NUCLEAR PHYSICS A | 1993年 / 564卷 / 04期

关键词：

NUCLEAR REACTIONS AL-27; NI-58; AU-197; (O-16; PI-PLUS-OR-MINUS-X); PX); E=94 MEV NUCLEON; MEASURED COINCIDENT LIGHT NUCLEI; PION; PARTICLE STATISTICAL EMISSION;

D O I：

10.1016/0375-9474(93)90214-I

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：

Light fragments detected by large-area multidetectors have been measured in coincidence with charged pions and protons for reactions induced by 94 MeV/u O-16 on Al, Ni and Au targets. The production of these particles is shown to obey the statistical decay of the system formed in the primary stage of the reaction, according to the participant/spectator pattern. Triggering pions and Protons are emitted by the highly excited reaction zone, the characteristics of which are determined with the help of kinematical correlations. The compatibility between the statistical emission and characteristic reaction times calculated by a dynamical model is examined.

引用

页码：564 / 594

页数：31

共 48 条

[21]

CASSING W, 1990, PHYS REP, V188, P364

[22] LIGHT FRAGMENT EMISSION CORRELATED WITH LARGE TRANSVERSE-MOMENTUM PROTONS IN 94 MEV/U O-16 INDUCED REACTIONS [J].

DURAND, D ;

LAVILLE, JL ;

BIZARD, G ;

BOUGAULT, R ;

GENOUXLUBAIN, A ;

LEFEBVRES, F ;

PATRY, JP ;

BADALA, A ;

BARBERA, R ;

PALMERI, A ;

PAPPALARDO, GS ;

SCHILLACI, A ;

JIN, GM ;

ROSATO, E .

NUCLEAR PHYSICS A, 1990, 511 (02) :442-460

[23]

DURAND D, 1986, THESIS U CAEN FRANCE

[24] LINEAR MOMENTUM-TRANSFER IN PION ACCOMPANIED O-16 INDUCED REACTION ON TH-232 AT 95 MEV PER NUCLEON [J].

ERAZMUS, B ;

GUET, C ;

MCGRATH, R ;

SAINTLAURENT, MG ;

SCHUTZ, Y ;

CIFFRE, JL ;

BOLORE, M ;

CASSAGNOU, Y ;

DABROWSKI, H ;

HISLEUR, M ;

JULIEN, J ;

LEGRAIN, R ;

LEBRUN, C ;

LECOLLEY, JF ;

LOUVEL, M .

NUCLEAR PHYSICS A, 1988, 481 (04) :821-833

[25]

FASSNACHT P, 1984, THESIS U L PASTEUR S

[26] EMISSION OF ENERGETIC PROTONS AT BACKWARD ANGLES IN HE+U REACTIONS WITHIN A COOPERATIVE MODEL WITH COULOMB EFFECTS [J].

GHOSH, B ;

SHYAM, R .

PHYSICS LETTERS B, 1990, 234 (03) :248-252

[27] CENTRAL COLLISIONS OF RELATIVISTIC HEAVY-IONS [J].

GOSSET, J ;

GUTBROD, HH ;

MEYER, WG ;

POSKANZER, AM ;

SANDOVAL, A ;

STOCK, R ;

WESTFALL, GD .

PHYSICAL REVIEW C, 1977, 16 (02) :629-657

[28]

GROSSE E, 1985, P INT WORKSHOP GROSS, V13, P65

[29]

GUET C, 1984, NUCL PHYS A, V428, pC119, DOI 10.1016/0375-9474(84)90246-X

[30] SUBTHRESHOLD PRODUCTION OF NEUTRAL PIONS WITH AR IONS OF 44 MEV/U [J].

HECKWOLF, H ;

GROSSE, E ;

DABROWSKI, H ;

KLEPPER, O ;

MICHEL, C ;

MULLER, WFJ ;

NOLL, H ;

BRENDEL, C ;

ROSCH, W ;

JULIEN, J ;

PAPPALARDO, GS ;

BIZARD, G ;

LAVILLE, JL ;

MUELLER, AC ;

PETER, J .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1984, 315 (02) :243-245

← 1 2 3 4 5 →