https://doi.org/10.1140/epjc/s10052-017-5496-z
Regular Article - Theoretical Physics
The minimal GUT with inflaton and dark matter unification
1
Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE, 19716, USA
2
Department of Physics, Faculty of Physics and Electronic Sciences, Hubei University, Wuhan, 430062, People’s Republic of China
3
Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China
4
School of Physical Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, People’s Republic of China
5
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, People’s Republic of China
* e-mail: hushan@itp.ac.cn
Received:
27
August
2017
Accepted:
21
December
2017
Published online:
13
January
2018
Giving up the solutions to the fine-tuning problems, we propose the non-supersymmetric flipped 
model based on the minimal particle content principle, which can be constructed from the four-dimensional SO(10) models, five-dimensional orbifold SO(10) models, and local F-theory SO(10) models. To achieve gauge coupling unification, we introduce one pair of vector-like fermions, which form a complete representation. The proton lifetime is around 
years, neutrino masses and mixing can be explained via the seesaw mechanism, baryon asymmetry can be generated via leptogenesis, and the vacuum stability problem can be solved as well. In particular, we propose that inflaton and dark matter particles can be unified to a real scalar field with 
symmetry, which is not an axion and does not have the non-minimal coupling to gravity. Such a kind of scenarios can be applied to the generic scalar dark matter models. Also, we find that the vector-like particle corrections to the 
masses might be about 6.6%, while their corrections to the 
and 
masses are negligible.
© The Author(s), 2018
