Cairo University

MTPR Journal


Fragmentation of 16O projectile in Nuclear Emulsion at 60 GeV

M.S.ElNagdy1,A.Abdelsalam2,B.M.Badawy3,P.I.Zarubi4, A.M.Abdalla5, S.M.Abdel-Halim6, M.Mahmoud2, A.Saber5 and M.M.Ahmed1
1Physics Dept. Faculty of Science, Helwan University, Cairo,
2Physics Dept. Faculty of Science, Cairo University, Giza Egypt.
3Reactor Physics Dept. Nuclear Research Center, Atomic Energy
Authority, Egypt.
4Joint Institute for Nuclear Research, Dubna, Russia.
5Mathematics and Physics Engineering Department, Faculty of
Engineering in Shoubra, Banha University, Cairo,Egypt.
6Physics Dept. Faculty of Science, Banha University, Banha,

Vol./Issue: 16 , id: 231

Topology of 16O fragmentation at 4.5 A Gev/c with emulsion nuclei is reported. The charges Z2 of projectile fragments were carefully measured and identified.The experimental measurements of partial production cross-section of the multiple helium fragments emitted from 16O beam are studied and compared with that obtained from different projectiles and various energies. We present results using a special type of events,selected to separate the events due to collision of singly charged particle Z=1 from 16O compared with collision of neutron from 16O beam. Those when neutron from 16O is collided. We describe a topological structure of such events.