| NUCLEAR PHYSICS |
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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
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| Cite this article: |
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M. S. El-Nagdy, A. Abdelsalam, B. M. Badawy et al 2018 Chin. Phys. Lett. 35 032501 |
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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.
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Received: 06 November 2017
Published: 25 February 2018
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| PACS: |
25.70.Mn
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(Projectile and target fragmentation)
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25.10.+s
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(Nuclear reactions involving few-nucleon systems)
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25.40.Ep
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(Inelastic proton scattering)
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29.25.Ni
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(Ion sources: positive and negative)
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Abstract
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