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5 papers · 2 filters
Effective operators within the ab initio no-core shell model
Ionel Stetcu, Bruce R. Barrett, Petr Navratil +1
We implement an effective operator formalism for general one- and two-body operators, obtaining results consistent with the no-core shell model (NCSM) wave functions. The Argonne V…
Effective Operator Treatment of the Lipkin Model
K. J. Abraham, J. P. Vary
We analyze the Lipkin Model using effective operator techniques. We present both analytical and numerical results for effective Hamiltonians. The accuracy of the cluster approximat…
Novel NN interaction and the spectroscopy of light nuclei
A. M. Shirokov, J. P. Vary, A. I. Mazur +2
Nucleon-nucleon (NN) phase shifts and the spectroscopy of nuclei are successfully described by an inverse scattering potential that is separable with oscillator form fact…
Jet quenching at intermediate RHIC energies
Ivan Vitev
The final state energy loss of fast partons penetrating a longitudinally expanding quark-gluon plasma of effective gluon rapidity density is evaluated and incor…
Extrapolation Method for the No-Core Shell Model
H. Zhan, A. Nogga, B. R. Barrett +2
Nuclear many-body calculations are computationally demanding. An estimate of their accuracy is often hampered by the limited amount of computational resources even on present-day s…