117 citations · 471 across the 16 of their papers we have counts for
14 papers · 1 filter
Catapult neutrons from neck snapping in fission
Jørgen Randrup, Roberto Capote, Ramona Vogt
Dynamical fission calculations show that the post-scission configurations resemble two collinear pear-shaped fragments whose juxtaposed surface bulges subside relatively quickly, a…
Primary fission fragment mass yields across the chart of nuclides
M. R. Mumpower, P. Jaffke, M. Verriere +1
We have calculated a complete set of primary fission fragment mass yields, , for heavy nuclei across the chart of nuclides, including those of particular relevance to the rap…
Fission modes in fermium isotopes with Brownian shape-motion model
M. Albertsson, B. G. Carlsson, T. Døssing +3
Fission-fragment mass and total-kinetic-energy distributions following fission of the fermium isotopes at low excitation energy have been calculated using…
Microscopic treatment of energy partition in fission
M. Albertsson, B. G. Carlsson, T. Døssing +3
The transformation of an atomic nucleus into two excited fission fragments is modeled as a strongly damped evolution of the nuclear shape, until scission occurs at a small critical…
Fission-fragment mass distributions from strongly damped shape evolution
J. Randrup, P. Moller, A. J. Sierk
Random walks on five-dimensional potential-energy surfaces were recently found to yield fission-fragment mass distributions that are in remarkable agreement with experimental data.…
Event-by-event evaluation of the prompt fission neutron spectrum from 239Pu(n, f)
R. Vogt, J. Randrup, D. A. Brown +2
Earlier studies of 239Pu(n, f) have been extended to incident neutron energies up to 20 MeV within the framework of the event-by-event fission model FREYA, into which we have incor…
Enhanced Event-by-Event Fluctuations in Pion Multiplicity as a Signal of Disoriented Chiral Condensates at RHIC
M. Bleicher, J. Randrup, R. Snellings +1
The factorial moments of the pion multiplicity distributions are calculated with HIJING and UrQMD and found to be independent of the pT range included, in contrast to recent simula…
Transport Simulations with Pi and Delta In-Medium Properties
J. Helgesson, J. Randrup
Transport simulations including in-medium properties derived in a microscopic pi + nucleon-hole + delta-hole model in infinite nuclear matter are presented. In-medium pion dispersi…
Dilepton from Disoriented Chiral Condensates
V. Koch, J. Randrup, X. N. Wang +1
Disoriented chiral condensates are manifested as long wavelength pionic oscillations and their interaction with the thermal environment can be a significant source of dileptons. We…
Effects of Spin-Isospin Modes in Transport Simulations
J. Helgesson, J. Randrup
In-medium properties derived for nuclear matter in a microscopic pi + nucleon-hole + delta-hole model are incorporated into transport simulations of nuclear collisions by means of…
Dileptons from Disoriented Chiral Condensates
Y. Kluger, V. Koch, J. Randrup +1
Disoriented chiral condensates or long wavelength pionic oscillations and their interaction with the thermal environment can be a significant source of dileptons. We calculate the…
Quantum Fluctuation Effects on Nuclear Fragment Formation
A. Ohnishi, J. Randrup
Multifragmentation in Au+Au collisions is investigated at incident energies in the range 100-400 MeV per nucleon by means of a recently developed quantal Langevin model. The inclus…
Inclusion of Quantum Fluctuations in Wave Packet Dynamics
A. Ohnishi, J. Randrup
We discuss a method by which quantum fluctuations can be included in microscopic transport models based on wave packets that are not energy eigenstates. By including the next-to-le…
INCORPORATION OF QUANTUM STATISTICAL FEATURES IN MOLECULAR DYNAMICS
Akira Ohnishi, Jorgen Randrup
We formulate a method for incorporating quantum fluctuations into molecular- dynamics simulations of many-body systems, such as those employed for energetic nuclear collision proce…