ヤマダ　ヒロフミ   Hirofumi Yamada   山田　宏文    所属   千葉工業大学  情報変革科学部 教育センター（情報変革科学部）    職種   教授
言語種別	英語
発行・発表の年月	2016/01
形態種別	大学・研究所等紀要
標題	Delta expansion and Wilson fermion in the Gross-Neveu model: Compatibility with linear divergence and continuum limit from inverse-mass expansion
執筆形態	単著
掲載誌名	Report of Chiba Institute of Technology
巻・号・頁	63,pp.53-59
概要	We apply the delta-expansion to the Gross-Neveu model in the large N limit with Wilson fermion and investigate dynamical mass generation from inverse-mass expansion. The dimensionless mass M defined via the effective potential is employed as the expansion parameter of the bare coupling constant beta which is partially renormalized by the subtraction of linear divergence. We show that delta-expansion of the 1/M series of beta is compatible with the mass renormalization. After the confirmation of the continuum scaling of the bare coupling without fermion doubling, we attempt to estimate dynamical mass in the continuum limit and obtain the results converging to the exact value for values of Wilson parameter r belonging to (0.8,1.0).