Source shape determination with directional fragment–fragment velocity correlations

• DOI: 10.1016/j.physletb.2007.11.081
• Publication Date: 2007-12-06T13:41:54Z
• Authors: A. Le Fèvre; C. Schwarz; G. Auger; M.L. Begemann-Blaich; N. Bellaize; R. Bittiger; F. Bocage; B. Borderie; R. Bougault; B. Bouriquet; J.L. Charvet; A. Chbihi; R. Dayras; D. Durand; J.D. Frankland; E. Galichet; D. Gourio; D. Guinet; S. Hudan; P. Lautesse; F. Lavaud; R. Legrain; O. Lopez; J. Łukasik; U. Lynen; W.F.J. Müller; L. Nalpas; H. Orth; E. Plagnol; E. Rosato; A. Saija; C. Sfienti; B. Tamain; W. Trautmann; A. Trzciński; K. Turzó; E. Vient; M. Vigilante; C. Volant; B. Zwiegliński
• Keywords: Fragment (logic)

Correlation functions, constructed from directional projections of the relative velocities fragments, are used to determine shape breakup volume in coordinate space. For central collisions 129Xe + natSn at 50 MeV per nucleon incident energy, measured with 4pi multi-detector INDRA GSI, a prolate aligned along beam direction an axis ratio 1:0.7 is deduced. The sensitivity method discussed comparison conventional fragment-fragment velocity correlations.