Transport model simulations of projectile fragmentation reactions at 140 MeV/nucleon

Journal Article · Fri Aug 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.024612· OSTI ID:21192124

Mocko, M ^[1]; Tsang, M B; Danielewicz, P; Lynch, W G ^[2]; Lacroix, D ^[2]; Ono, A ^[3]; Charity, R J ^[4]

---

1. Los Alamos National Laboratory, Post Office Box 1663, Los Alamos, New Mexico 87545 (United States)
2. National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
3. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
4. Chemistry Department, Washington University, St. Louis, Missouri 63130 (United States)

The collisions in four different reaction systems using {sup 40,48}Ca and {sup 58,64}Ni isotope beams and a Be target have been simulated using the heavy ion phase space exploration and the antisymmetrized molecular dynamics models. The present study mainly focuses on the model predictions for the excitation energies of the hot fragments and the cross sections of the final fragments produced in these reactions. The effects of various factors influencing the final fragment cross sections, such as the choice of the statistical decay code and its parameters, have been explored. The predicted fragment cross sections are compared to the projectile fragmentation cross sections measured with the A1900 mass separator. At E/A=140 MeV, reaction dynamics can significantly modify the detection efficiencies for the fragments and make them different from the efficiencies applied to the measured data reported in the previous work. The effects of efficiency corrections on the validation of event generator codes are discussed in the context of the two models.

• OSTI ID: 21192124
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM ISOTOPES
CALCIUM 40
CALCIUM 48
COLLISIONS
CORRECTIONS
CROSS SECTIONS
DECAY
EFFICIENCY
EXCITATION
FRAGMENTATION
HEAVY IONS
MASS
MEV RANGE 100-1000
MOLECULAR DYNAMICS METHOD
NICKEL 64
NUCLEONS
PHASE SPACE
SIMULATION
TRANSPORT THEORY
VALIDATION