Fast ternary and quaternary breakup of the 197Au + 197Au system in collisions at 15 MeV/nucleon.
A new reaction mechanism of violent reseparation of a heavy nucleus-nucleus system, 197Au + 197Au, into three or four massive fragments in collisions at 15 MeV/nucleon has been observed. After reseparation, the fragments are almost exactly aligned, thus showing a very short time scale of the reseparation process, of about 70-80 fm/c.
Institute of Experimental Physics, University of Warsaw, Warsaw, Poland.
I
I
Skwira-Chalot
K
K
Siwek-Wilczyńiska
J
J
Wilczyński
F
F
Amorini
A
A
Anzalone
L
L
Auditore
V
V
Baran
J
J
Brzychczyk
G
G
Cardella
S
S
Cavallaro
M B
MB
Chatterjee
M
M
Colonna
E
E
De Filippo
M
M
Di Toro
W
W
Gawlikowicz
E
E
Geraci
A
A
Grzeszczuk
P
P
Guazzoni
S
S
Kowalski
E
E
La Guidara
G
G
Lanzalone
G
G
Lanzanò
J
J
Łukasik
C
C
Maiolino
Z
Z
Majka
N G
NG
Nicolis
A
A
Pagano
E
E
Piasecki
S
S
Pirrone
R
R
Płaneta
G
G
Politi
F
F
Porto
F
F
Rizzo
P
P
Russotto
K
K
Schmidt
A
A
Sochocka
Ł
Ł
Swiderski
A
A
Trifirò
M
M
Trimarchi
J P
JP
Wieleczko
L
L
Zetta
W
W
Zipper