Knowledge Management System of Institute of Theoretical Physics, CAS
Tang, Yong1; Wu, Yue-Liang
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| Weyl scaling invariant R-2 gravity for inflation and dark matter | |
| Source Publication | PHYSICS LETTERS B
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| Language | 英语 |
| Keyword | ELECTROWEAK SYMMETRY-BREAKING QUANTUM COSMOLOGY FLATNESS UNIVERSE HORIZON |
| Abstract | Inflation in the early universe can generate the nearly conformal invariant fluctuation that leads to the structures we observe at the present. The simple viable Starobinsky R-2 inflation has an approximate global scale symmetry. We study the conformal symmetric Weyl (R) over cap (2) and general F((R) over cap) theories and demonstrate their equivalence to Einstein gravity coupled with a scalar and a Weyl gauge field. The scalar field in Weyl (R) over cap (2) gravity can be responsible for inflation with Starobinsky model as the attractor, potentially distinguishable from the latter by future experiments. The intrinsic Weyl gauge boson becomes massive once the Einstein frame is fixed, and constitutes as a dark matter candidate with mass up to similar to 5 x 10(16) GeV. (c) 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| 2020 | |
| ISSN | 0370-2693 |
| Volume | 809Pages:135716 |
| Cooperation Status | 国内 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| DOI | 10.1016/j.physletb.2020.135716 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27537 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Univ Chinese Acad Sci UCAS, Sch Astron & Space Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China 3.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 4.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Tang, Yong,Wu, Yue-Liang. Weyl scaling invariant R-2 gravity for inflation and dark matter[J]. PHYSICS LETTERS B,2020,809:135716. |
| APA | Tang, Yong,&Wu, Yue-Liang.(2020).Weyl scaling invariant R-2 gravity for inflation and dark matter.PHYSICS LETTERS B,809,135716. |
| MLA | Tang, Yong,et al."Weyl scaling invariant R-2 gravity for inflation and dark matter".PHYSICS LETTERS B 809(2020):135716. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Weyl scaling invaria（470KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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