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Feng, CJ; Li, XZ; Feng, CJ (reprint author), Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China.
Is cosmological constant needed in Higgs inflation?
Source PublicationPHYSICS LETTERS B
Language英语
KeywordBoson Flatness Universe Horizon Lhc
AbstractThe detection of B-mode shows a very powerful constraint to theoretical inflation models through the measurement of the tensor-to-scalar ratio r. Higgs boson is the most likely candidate of the inflaton field. But usually, Higgs inflation models predict a small value of r, which is not quite consistent with the recent results from BICEP2. In this paper, we explored whether a cosmological constant energy component is needed to improve the situation. And we found the answer is yes. For the so-called Higgs chaotic inflation model with a quadratic potential, it predicts r approximate to 0.2, n(s) approximate to 0.96 with e-folds number N approximate to 56, which is large enough to overcome the problems such as the horizon problem in the Big Bang cosmology. The required energy scale of the cosmological constant is roughly Lambda similar to (10(14) GeV)(2), which means a mechanism is still needed to solve the fine-tuning problem in the later time evolution of the universe, e.g. by introducing some dark energy component. (C) 2014 The Authors. Published by Elsevier B.V.
2014
ISSN0370-2693
Volume738Issue:-Pages:254-257
Subject AreaPhysics
DOI10.1016/j.physletb.2014.09.057
Indexed BySCI
Funding OrganizationNational Science Foundation of China [11105091, 11047138]; Shanghai Municipal Education Commission; Shanghai Education Development Foundation [12CG51]; National Education Foundation of China [2009312711004]; Shanghai Natural Science Foundation, China [10ZR1422000]; Chinese Ministry of Education [211059]; Shanghai Special Education Foundation [ssd10004]; Shanghai Normal University [DXL124] ; National Science Foundation of China [11105091, 11047138]; Shanghai Municipal Education Commission; Shanghai Education Development Foundation [12CG51]; National Education Foundation of China [2009312711004]; Shanghai Natural Science Foundation, China [10ZR1422000]; Chinese Ministry of Education [211059]; Shanghai Special Education Foundation [ssd10004]; Shanghai Normal University [DXL124] ; National Science Foundation of China [11105091, 11047138]; Shanghai Municipal Education Commission; Shanghai Education Development Foundation [12CG51]; National Education Foundation of China [2009312711004]; Shanghai Natural Science Foundation, China [10ZR1422000]; Chinese Ministry of Education [211059]; Shanghai Special Education Foundation [ssd10004]; Shanghai Normal University [DXL124] ; National Science Foundation of China [11105091, 11047138]; Shanghai Municipal Education Commission; Shanghai Education Development Foundation [12CG51]; National Education Foundation of China [2009312711004]; Shanghai Natural Science Foundation, China [10ZR1422000]; Chinese Ministry of Education [211059]; Shanghai Special Education Foundation [ssd10004]; Shanghai Normal University [DXL124]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15575
Collection理论物理所科研产出_SCI论文
Corresponding AuthorFeng, CJ (reprint author), Shanghai Normal Univ, SUCA, 100 Guilin Rd, Shanghai 200234, Peoples R China.
Recommended Citation
GB/T 7714
Feng, CJ,Li, XZ,Feng, CJ . Is cosmological constant needed in Higgs inflation?[J]. PHYSICS LETTERS B,2014,738(-):254-257.
APA Feng, CJ,Li, XZ,&Feng, CJ .(2014).Is cosmological constant needed in Higgs inflation?.PHYSICS LETTERS B,738(-),254-257.
MLA Feng, CJ,et al."Is cosmological constant needed in Higgs inflation?".PHYSICS LETTERS B 738.-(2014):254-257.
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