تقرير
The Minimal Volkov - Akulov - Starobinsky Supergravity
| العنوان: | The Minimal Volkov - Akulov - Starobinsky Supergravity |
|---|---|
| المؤلفون: | Antoniadis, I., Dudas, E., Ferrara, S., Sagnotti, A. |
| سنة النشر: | 2014 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Theory, Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology |
| الوصف: | We construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary phase. The model includes a second chiral superfield $X$, which is subject however to the constraint $X^2=0$ so that it describes only a Volkov - Akulov goldstino and an auxiliary field. We also construct the dual higher - derivative model, which rests on a chiral scalar curvature superfield ${\cal R}$ subject to the constraint ${\cal R}^2=0$, where the goldstino dual arises from the gauge - invariant gravitino field strength as $\gamma^{mn} {\cal D}_m \psi_n$. The final bosonic action is an $R+R^2$ theory involving an axial vector $A_m$ that only propagates a physical pseudoscalar mode. Comment: 9 pages, LaTeX. Title shortened, references added. To appear in Phys. Lett. B |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2014.04.015 |
| URL الوصول: | http://arxiv.org/abs/1403.3269 |
| رقم الأكسشن: | edsarx.1403.3269 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2014.04.015 |
|---|