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Multiplicity distributions of shower particles and target fragments in 7Li–Em collisions at 3 A GeV/c

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Abstract

Multiplicity distributions of shower particles and target fragments in 7Li–Em (emulsion) collisions at 3 A GeV/c are experimentally studied. In the framework of the multisource thermal model, the multicomponent Erlang distribution is used to describe the experimental multiplicity distributions of shower particles, grey fragments, black fragments, and heavily ionized fragments. The correlations between these multiplicities are experimentally reported. With the increase of impacting centrality (or the target fragment multiplicity), a saturation phenomenon for shower particle multiplicity is observed in the experiment.

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Acknowledgements

The experimental data are measured in the High Energy Nuclear Physics Laboratory, Physics Department, Faculty of Science, Sohag University, Egypt. This work was supported by the National Natural Science Foundation of China under Grant No. 10975095, the China National Fundamental Fund of Personnel Training under Grant No. J1103210, the Open Research Subject of the Chinese Academy of Sciences Large-Scale Scientific Facility under Grant No. 2060205, and the Shanxi Scholarship Council of China.

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Authors and Affiliations

  1. Physics Department, Faculty of Science, Sohag University, Sohag, Egypt

    N N ABD ALLAH, E A SULTAN & M HASSAN

  2. Institute of Theoretical Physics, Shanxi University, Taiyuan, Shanxi, 030006, China

    FU-HU LIU

Authors
  1. N N ABD ALLAH
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  2. FU-HU LIU
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  3. E A SULTAN
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  4. M HASSAN
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Correspondence to FU-HU LIU.

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ABD ALLAH, N.N., LIU, FH., SULTAN, E.A. et al. Multiplicity distributions of shower particles and target fragments in 7Li–Em collisions at 3 A GeV/c. Pramana - J Phys 81, 287–293 (2013). https://doi.org/10.1007/s12043-013-0557-9

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  • DOI: https://doi.org/10.1007/s12043-013-0557-9

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