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Phys. Rev. C 65, 051602(R) (2002) [4 pages]

Sequential decay distortion of Goldhaber model widths for spectator fragments

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Y. G. Ma*, R. Wada, K. Hagel, M. Murray, J. S. Wang†, L. J. Qin, A. Makeev, P. Smith, and J. B. Natowitz
Cyclotron Institute, Texas A&M University, College Station, Texas 77843-3366

A. Ono
Department of Physics, Tohoku University, Sendai 980-8578, Japan

See Also: Erratum

Received 14 December 2001; published 2 May 2002

The momentum widths of the primary fragments and observed final fragments have been investigated within the framework of an antisymmetrized molecular dynamics transport model code with a sequential decay afterburner (GEMINI). It is found that the secondary evaporation effects cause the values of a reduced momentum width σ0, derived from momentum widths of the final fragments, to be significantly less than those appropriate for the primary fragment but close to those observed in many experiments. Therefore, a new interpretation for experimental momentum widths of projectilelike fragments is presented.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.051602
DOI:
10.1103/PhysRevC.65.051602
PACS:
25.70.Pq, 02.70.Ns, 25.70.Mn

*On leave from Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, China.

†On leave from Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.

See Also

Erratum: Y. G. Ma, R. Wada, K. Hagel, M. Murray, J. S. Wang, L. J. Qin, A. Makeev, P. Smith, J. B. Natowitz, and A. Ono, Erratum: Sequential decay distortion of Goldhaber model widths for spectator fragments [Phys. Rev. C 65, 051602(R) (2002)], Phys. Rev. C 66, 029902 (2002).

 
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