and THE KEK-PS E337/E393 and NIRS-HIMAC P052 COLLABORATION

Tetsuya Murakami
M. Hagaa
M. Hasenob
Y. Hiraic
H. Itoc
M. Itohc
T. Kawabatac
K. Kimurab
F. Kosuged
R. Kuboharad
S. Miharac
K. Miyazakic
S. Morinobue
R. Muramatsuc
J. Muratac
Y. Nagasakab
K. Nakaid
H. Ochiishie
Y. Ohkumaa
Y. Okunob
S. Otac
T. Shibataf
Y. Shibatad
Y. Sugayag
E. Takadah
H. Takedac
K. H. Tanakaf
Y. Tanakab
Y. J. Tanakac
S. Terashimac
M. Uchidac
K. Ushieb
Y. Yamanoif
K. Yasudac
Y. Yasudac

Publication date

July 2015

Abstract

We have extended our investigations on nuclear multifragmentations induced by GeV-energy light projectiles. By using light heavy-ion beams (16O, 20Ne and 28Si) provided from the Heavy-Ion Medical Accelerator in Chiba (HIMAC) at the National Institute for Radiological Science (NIRS) we studied similarities and differences among various fragment formation reactions in the same total energy domain. We found there are noticeable differences in spectrum shapes of Intermediate-Mass Fragment (IMF) and their magnitudes depending upon the projectile mass, but all of their angular distributions clearly exhibit the existence of sideward-peaked components, indicating fragment formations are mainly governed by a total energy of the projectile, not by a ...