Features on Very Peripheral Collisions of $^{16}$O-Em at 3.7A GeV
M. S. El-Nagdy1, A. Abdelsalam2, B. M. Badawy3, P. I. Zarubin4, A. M. Abdalla5**, A. Saber5
1Physics Department, Faculty of Science, Helwan University, Helwan, Egypt 2Physics Department, Faculty of Science, Cairo University, Giza, Egypt 3Reactor Physics Department, Atomic Energy Authority, Egypt 4Joint Institute for Nuclear Research, Dubna, Moscow, Russia 5Department of Mathematical and Physical Engineering, Faculty of Engineering in Shoubra, Benha University, Cairo, Egypt
Abstract：From 1540 inelastic interactions of 3.7 A GeV $^{16}$O projectile with emulsion nuclei, we select samples of 87 and 61 events carefully due to interactions of neutron (n) and singly charged particles ($Z=1$), respectively. New results concerning the topology of such events are investigated. The average multiplicities of secondary relativistic particles that appear as shower tracks for n and $Z=1$ stay more or less constant when compared with analogous data on p-Em at similar energy. The multiplicity distributions and the average values of the various secondary charged particles are studied and compared with the corresponding predictions by the cascade evaporation model. The results assume that the n or $Z=1$ from $^{16}$O collide peripherally with an emulsion target and are considered as an expansion to the N-N collisions.
. [J]. 中国物理快报, 2018, 35(3): 32501-.
M. S. El-Nagdy, A. Abdelsalam, B. M. Badawy, P. I. Zarubin, A. M. Abdalla, A. Saber. Features on Very Peripheral Collisions of $^{16}$O-Em at 3.7A GeV. Chin. Phys. Lett., 2018, 35(3): 32501-.
El-Nagdy M S, Abdel-Halim S M, Yasin M N 2005 CP748 First Int. Conf. Mod. Trends Phys. Res. MTPR (New York: American Institute of Physics) 0-7354-02337/05 p 387
2018, Vol. 35 
