文献类型：期刊文献

英文题名：Gauge invariance of the vector meson mass in the Coleman-Weinberg model

作者：Shen, Haojie[1];Cheng, Yu[1,2,3];Liao, Wei[1]

机构：[1]East China Univ Sci & Technol, Sch Sci, Inst Modern Phys, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China;[3]Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

年份：2021

卷号：103

期号：7

外文期刊名：PHYSICAL REVIEW D

收录：;EI(收录号：20210041150);WOS:【SCI-EXPANDED(收录号:WOS:000648579600009)】；

基金：L. W. thanks Han-qing Zheng for helpful discussion. This work is supported by National Natural Science Foundation of China (NSFC), Grant No. 11875130.

语种：英文

外文关键词：Bosons - Hadrons

摘要：We revisit the problem of the gauge invariance in the Coleman-Weinberg model in which a U(1) gauge symmetry is driven spontaneously broken by radiative corrections. It was noticed in previous work that masses in this model are not gauge invariant at one-loop order. In our analysis, we use the dressed propagators of scalars which include a resummation of the one-loop self-energy correction to the tree-level propagator. We calculate the one-loop self-energy correction to the vector meson using these dressed propagators. We find that the pole mass of the vector meson calculated using the dressed propagator is gauge invariant at the vacuum determined using the effective potential calculated with a resummation of daisy diagrams.