Multifragmentation: thermal vs. dynamic effects

✍ Scribed by K. Kwiatkowski; W.-C. Hsi; V.E. Viola; G. Wang; D.S. Bracken; H. Breuer; E. Cornell; E. Renshaw Foxford; F. Gimeno-Nogues; D.S. Ginger; S. Gushue; R.G. Korteling; W.G. Lynch; K.B. Morley; E.C. Pollacco; E. Ramakrishnan; L.P. Remsberg; M.B. Tsang; C. Volant; S.J. Yennello; H. Xi; N.R. Yoder

• Book ID: 104336719
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 413 KB
• Volume: 630
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(97)00753-7

✦ Synopsis

Reactions of 1.8 -4.8 GeV 3He, 5.0 -9.2 GeV/c 7r-and 6.0 -14.6 GeV/c protons with natAg and 197Au targets have been studied with the ISiS 4~r detector array. From reconstructed events, excitation-energy distributions have been determined and combined with a 2'3H/3'4He isotope-ratio thermometer to study the heating curve for the thermal-like component of these reactions. Dynamic effects also manifest themselves in the data, as evidenced by deposition-energy saturation above ~5 GeV, IMF emission during expansion, and sideways peaking of the IMF angular distributions for beam energies Eb _> 10 GeV.