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Sequential Decay Distortion of Goldhaber Model Widths for Spectator Fragments

Y. G. Ma·R. Wada·K. Hagel·M. Murray·A. Ono·J. S. Wang·L. J. Qin·A. Makeev·P. Smith·J. B. Natowitz
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Abstract

Momentum widths of the primary fragments and observed final fragments have been investigated within the framework of an Antisymmetrized Molecular Dynamics transport model code (AMD-V) with a sequential decay afterburner (GEMINI). It is found that the secondary evaporation effects cause the values of a reduced momentum width, $σ_0$, derived from momentum widths of the final fragments to be significantly less than those appropriate to the primary fragment but close to those observed in many experiments. Therefore, a new interpretation for experiemental momentum widths of projectile-like fragments is presented.

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Y. G. Ma, R. Wada, K. Hagel, M. Murray, A. Ono, J. S. Wang, L. J. Qin, A. Makeev, P. Smith, J. B. Natowitz. 2002-03-19. Sequential Decay Distortion of Goldhaber Model Widths for Spectator Fragments. https://doi.org/10.1103/physrevc.65.051602%2010.1103%2Fphysrevc.66.029902

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