### Abstract

A binomial reducibility and thermal scaling analysis is performed on well-chacracterized thermal-like sources formed in 8 GeV/c π^{-} + ^{197}Au reactions. The fragment probability distributions are shown to be binomial when plotted as a function of the measured excitation energy E* and the binomial elementary probability p is shown to follow the expected Boltzmann factor: ln(p)∝exp(-B/√E*/A). Binomial reducibility and thermal scaling are explored also using global variables other than E*, and the effect of source size on the binomial parameter p and m is shown. Finally, the extracted probability p is found to be correlated with the experimentally deduced fragment emission time up to about 6A MeV of excitation energy, hinting at a possible transition in decay mechanism above that excitation energy.

Original language | English |
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Article number | 031302 |

Pages (from-to) | 313021-313025 |

Number of pages | 5 |

Journal | Physical Review C - Nuclear Physics |

Volume | 63 |

Issue number | 3 |

DOIs | |

State | Published - Mar 2001 |

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## Cite this

*Physical Review C - Nuclear Physics*,

*63*(3), 313021-313025. [031302]. https://doi.org/10.1103/PhysRevC.63.031302