Phys. Rev. Lett. 82, 3585 (1999) - Experimental Evidence for Dynamical Decay of Finite Nuclear Matter

Experimental Evidence for Dynamical Decay of Finite Nuclear Matter

R. Yanez, T. A. Bredeweg, E. Cornell, B. Davin, K. Kwiatkowski, V. E. Viola, R. T. de Souza, R. Lemmon, and R. Popescu

Phys. Rev. Lett. 82, 3585 – Published 3 May 1999

Abstract

Ternary fission in the reaction $^{12} C +^{232} Th$ at $E_{lab} = 22 A MeV$ reveals evidence for dynamical decay. The relative emission probability of intermediate-mass fragments (IMF: $3 \leq Z \leq 20$ ) as a function of the initial excitation of the composite system is examined. While IMFs emitted pre-scission exhibit behavior consistent with statistical emission, near-scission IMFs, characterized by unique angular and energy distributions, clearly exhibit a behavior consistent with dynamical decay.

Received 19 November 1998

DOI:https://doi.org/10.1103/PhysRevLett.82.3585

©1999 American Physical Society

Authors & Affiliations

R. Yanez, T. A. Bredeweg, E. Cornell^*, B. Davin, K. Kwiatkowski^†, V. E. Viola, and R. T. de Souza

Department of Chemistry and Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana 47405

R. Lemmon^‡ and R. Popescu^§

National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824

^*Present address: Lawrence Berkeley National Laboratory, Berkeley, CA 94720.
^†Present address: Los Alamos National Laboratory, Los Alamos, NM 87545.
^‡Present address: CCLRC Daresbury Laboratory, Warrington, WA4 4AD UK.
^§Present address: Brookhaven National Laboratory, Upton, NY 11973.

Comments & Replies

Paluš and Novotná Reply:

M. Paluš

Phys. Rev. Lett. 85, 2648 (2000)

Comment on “Experimental Evidence for Dynamical Decay of Finite Nuclear Matter”

L. G. Moretto, D. Breus, L. Phair, and G. J. Wozniak

Phys. Rev. Lett. 85, 2645 (2000)

Yanez et al. Reply:

R. Yanez, R. T. de Souza, T. A. Bredeweg, B. Davin, and V. E. Viola

Phys. Rev. Lett. 85, 2646 (2000)

What Can Be Inferred from Surrogate Data Testing?

J. Timmer

Phys. Rev. Lett. 85, 2647 (2000)

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Vol. 82, Iss. 18 — 3 May 1999

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