@article{oai:sucra.repo.nii.ac.jp:00012491, author = {田辺, 孝哉 and Esashika, K. and Nakada, H.}, issue = {4}, journal = {Physical review. C}, month = {}, note = {By applying the particle-number projection to the finite-temperature BCS theory, the S-shaped heat capacity, which has recently been claimed to be a fingerprint of the superfluid-to-normal phase transition in nuclei, is reexamined. It is found that the particle-number (or number-parity) projection gives S-shapes in the heat capacity of nuclei which look qualitatively similar to the observed ones. These S-shapes are accounted for as effects of the particle-number conservation on the quasiparticle excitations, and occur even without the phase transition. The present study illustrates significance of the conservation laws in studying phase transitions of finite systems., Source published by American Physical Society., text, application/pdf}, title = {Effects of particle-number conservation on heat capacity of nuclei}, volume = {72}, year = {2005}, yomi = {タナベ, コウサイ} }