APS » PROLA » Phys. Rev. C » Volume 57 » Issue 3

Phys. Rev. C 57, R1027 - R1031 (1998)

Symmetrization of emitter size in violent “light” heavy ion collisions at intermediate energy
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Y. Larochelle, L. Gingras, L. Beaulieu *, R. Laforest †, R. Roy, M. Samri ‡, and C. St-Pierre
Laboratoire de physique nucléaire, Département de physique, Université Laval, Québec, Canada G1K 7P4

Rapid Communication Received 7 November 1997

Vaporization and high multiplicity events, where the nuclear system is almost completely disassembled in light charged particles (Z<~2), were analyzed for events with total charge detected (ΣZ=23) in the 35Cl+12C reaction at 43 MeV/nucleon. Kinematic characteristics have been studied separately for Z=1, Z=2, and Z=3–4 particles. When those are compared to simulations, noticeable differences in privileged emission direction have been found between Z>~2 particles and protons. For violent reactions, these differences could be explained by the apparent “symmetrization” of the reaction partners via the formation of a large necklike structure, and its subsequent breakup into many light ions.


©1998 The American Physical Society

URL: http://link.aps.org/abstract/PRC/v57/pR1027
DOI: 10.1103/PhysRevC.57.R1027
PACS: 25.70.Lm, 25.70.Mn

* Present address: M/S 88, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720.
† Present address: Cyclotron Institute, Texas A&M, College Station, TX 77843.
‡ Present address: Département de Physique, Faculté des Sciences, Université Ibn Toufail, Kénitra, Maroc.

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