Time-scale analysis of three-fragment emission in the 12.7 GeV 4He + 197Au reaction

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)874-877
Journal / PublicationRadiation Measurements
Volume44
Issue number9-10
Online published29 Oct 2009
Publication statusPublished - Oct 2009

Abstract

The time-scale for emission of three fragments (Z ≥ 8) in the 12.7 GeV 4He + 197Au reaction has been studied using a sandwich configuration of the Makrofol polycarbonate track detector. In events with different multiplicity of heavy fragments (Z > 20), the differences of the correlation functions for relative angle and relative velocity between pairs of fragments have been studied in order to determine the fragment emission-time scale. A sequential decay mechanism for the excited residual nuclei was found to be consistent with experimental data. It was determined that the fragment emission-time decreased with decreasing multiplicity of heavy fragments: from 1000 fm/c for events with two heavy fragments, through 300 fm/c for events with one heavy fragment, to 40 fm/c for events with no emission of heavy fragments. Crown Copyright © 2009.

Research Area(s)

  • Associated spallation, Fission, Multifragmentation, Ternary events

Citation Format(s)

Time-scale analysis of three-fragment emission in the 12.7 GeV 4He + 197Au reaction. / Savović, Svetislav; Todorović, Živojin; Djordjevich, Alexandar et al.
In: Radiation Measurements, Vol. 44, No. 9-10, 10.2009, p. 874-877.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review