The Axion mass in modular invariant supergravity
The Axion mass in modular invariant supergravity
复制标题
模不变超重力中的轴子质量
DOI:
10.1016/j.physletb.2005.03.024
复制
发表时间:
2005
影响因子:
4.4
通讯作者:
M. Gaillard
中科院分区:
文献类型:
--
作者:
D. Butter;M. Gaillard
When supersymmetry is broken by condensates with a single condensing gauge group, there is a nonanomalous R-symmetry that prevents the universal axion from acquiring a mass. It has been argued that, in the context of supergravity, higher dimension operators will break this symmetry and may generate an axion mass too large to allow the identification of the universal axion with the QCD axion. We show that such contributions to the axion mass are highly suppressed in a class of models where the effective Lagrangian for gaugino and matter condensation respects modular invariance (T-duality).