Systematization of intermediate-mass fragments |
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Authors: | A S Danagulyan G H Hovhanesyan T M Bakhshiyan |
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Institution: | 1. Yerevan State University, Yerevan, Armenia
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Abstract: | We consider the power law dependence of cross-sections of formation of intermediate-mass fragments on the mass number and atomic number, σ (A f ) ~ A f ?τ and σ (Z f ) ~ Z f ?τ . The values of parameter τ are determined for fragments detected by the ΔE ? E and the induced activity methods. It is shown that in “liquid-gas” phase transition τ varies within the limits of 2–3. A conclusion was drawn that at high beam energies parameter τ does not depend on the detection angle of the fragment. At the increase in the energy τ passes through a minimum at E i ~ 6–7 GeV which is typical “critical behavior” predicted by models. |
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