Supermassive gauginos in supergravity inflation with high-scale SUSY breaking

被引:0
作者
Jang, Hun [1 ,2 ,3 ]
Porrati, Massimo [4 ]
机构
[1] Sogang Univ, Ctr Quantum Spacetime CQUeST, 35 Baekbeom Ro, Seoul 04107, South Korea
[2] Kyoto Univ, Yukawa Inst Theoret Phys YITP, Kitashirakawa Oiwakecho,Sakyo Ku, Kyoto 6068502, Japan
[3] Incheon Natl Univ, Res Inst Basic Sci RIBS, 119,Acad Ro, Incheon 22012, South Korea
[4] NYU, Ctr Cosmol & Particle Phys, Dept Phys, 726 Broadway, New York, NY 10003 USA
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 08期
基金
新加坡国家研究基金会;
关键词
Effective Field Theories; Supergravity Models; INVARIANCE;
D O I
10.1007/JHEP08(2024)019
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
A model of supergravity inflation we recently proposed can produce slow roll inflation and a realistic spectrum of particles even without F-term supersymmetry breaking. Supersymmetry is broken only by a D-term induced by a recently discovered new type of Fayet-Iliopoulos (FI) term. Almost all supersymmetric partners of the standard model fields can get masses as high as the inflationary Hubble scale. The exception is gauginos, for which the vanishing of F-terms implies an exact cancellation that keeps their masses exactly zero. To cure this problem without spoiling the simplicity of our model we introduce a new term that further enlarges the space of supergravity effective actions. It is an F-term that, similarly to the new FI term, becomes singular in the supersymmetric limit. We show that this term can produce large gaugino masses without altering the spectrum of other states and without lowering the cutoff of the effecive theory.
引用
收藏
页数:16
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