arXiv subjects

Akira Suzuki

Publications and source records attributed to Akira Suzuki.

38 records · Page 3Linked to original sources

arXiv1993

An improved calculation of the Third Virial Coefficient of a free anyon Gas

For three anyons confined in a harmonic oscillator, only the class of states that interpolate nonlinearly with the statistical parameter contributes to the third virial coefficient of a free anyon gas. Rather than evaluating the full three-body partition function as was done in an earlier publication (Phys. Rev. {\bf A46}, 4693 (1992)), here only the nonlinear contribution is calculated, thus avoiding delicate cancellations between the irrelevant linear part and the two-body partition function. Our numerical results are consistent with the simple analytical form suggested recently by Myrheim and Olaussen.

hep-th↗

arXiv1993

Effective Masses and Sizes of N(939), $Δ\!\!\mbox{\boldmath(1232)}$ and N(1440) in Nuclear Medium

The effective masses and sizes of N(939), $Δ(1232)$ and N(1440) in nuclear medium are calculated for a model in which quarks are subjected to a confinement force quenched by the scalar part of nuclear interactions. At the nuclear matter density, the nucleon swells by 50\% relative to the free nucleon. The masses of $Δ(1232)$ and N(1440) decrease in nuclear medium more than the nucleon, so that the pion requires less energy to excite them in nuclear medium than it does for a free nucleon.

nucl-th↗