1. Multiplicity fluctuation analysis of target residues in nucleus-emulsion collisions at a few hundred MeV/nucleon
- Author
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Zhang, D. H., Chen, Y. L., Wang, G. R., Li, W. D., Wang, Q., Yao, J. J., Zhou, J. G., Zhen, S. H., Xu, L. L., Miao, H. F., and Wang, P.
- Subjects
Nuclear Experiment - Abstract
Multiplicity fluctuation of the target evaporated fragments emitted in 290 A MeV 12C-AgBr, 400 A MeV 12C-AgBr, 400 A MeV 20Ne-AgBr and 500 A MeV 56Fe-AgBr interactions is investigated using scaled factorial moment method in two-dimensional normal phase space and cumulative variable space, respectively. It is found that in normal phase space the scaled factorial moment (ln
) increases linearly with increase of the divided number of phase space (lnM) for lower q-value and increases linearly with the increase of lnM and then becomes saturated or decreased for higher q-value, in cumulative variable space ln decreases linearly with increase of lnM, which indicates that no evidence of non-statistical multiplicity fluctuation is observed in our data sets. So any fluctuation indicated in the results of normal variable space analysis is totally caused by non-uniformity of single-particle density distribution., Comment: 10 Pages, 4 figures - Published
- 2013
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