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6 papers · 2 filters
On the Response Function Technique for Calculating the Random-Phase Approximation Correlation Energy
Y. R. Shimizu, P. Donati, R. A. Broglia
We develop a scheme to exactly evaluate the correlation energy in the random-phase approximation, based on linear response theory. It is demonstrated that our formula is completely…
Constructing Effective Pair Wave Function from Relativistic Mean Field Theory with a Cutoff
Tomonori Tanigawa, Masayuki Matsuzaki
We propose a simple method to reproduce the ^1S_0 pairing properties of nuclear matter, which are obtained using a sophisticated model, by introducing a density-independent cutoff…
Phenomenological construction of a relativistic nucleon-nucleon interaction for the superfluid gap equation in finite density systems
Masayuki Matsuzaki, Tomonori Tanigawa
We construct phenomenologically a relativistic particle-particle channel interaction which suits the gap equation for nuclear matter. This is done by introducing a density-independ…
Constituent quark model for baryons with strong quark-pair correlations and non-leptonic weak transitions of hyperon
K. Suzuki, E. Hiyama, H. Toki +1
We study the roles of quark-pair correlations for baryon properties, in particular on non-leptonic weak decay of hyperons. We construct the quark wave function of baryons by solvin…
Unitary-model-operator approach to hypernuclei
S. Fujii, R. Okamoto, K. Suzuki
A method is formulated for the description of lambda hypernuclei in the framework of the unitary-model-operator approach (UMOA). The method is applied to O. A lambda-nucle…
Effect of Vector Meson Mass Decrease on Superfluidity in Nuclear Matter
Tomonori Tanigawa, Masayuki Matsuzaki
pairing in nuclear matter is investigated by taking the hadron mass decrease into account via the ``In-Medium Bonn potential'' which was recently proposed by Rapp et al. Th…