https://doi.org/10.1140/epjc/s10052-017-4807-8
Letter
Higgs mechanism and cosmological constant in 
supergravity with inflaton in a vector multiplet
1
Department of Physics, Tokyo Metropolitan University, Minami-ohsawa 1-1, Hachioji-shi, Tokyo, 192-0397, Japan
2
Kavli Institute for the Physics and Mathematics of the Universe (IPMU), The University of Tokyo, Chiba, 277-8568, Japan
3
Institute of Physics and Technology, Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russian Federation
* e-mail: ketov@tmu.ac.jp
Received:
2
March
2017
Accepted:
3
April
2017
Published online:
12
April
2017
The supergravity models of cosmological inflation with an inflaton belonging to a massive vector multiplet and spontaneous SUSY breaking after inflation are reformulated as the supersymmetric U(1) gauge theories of a massless vector superfield interacting with the Higgs and Polonyi chiral superfields, all coupled to supergravity. The U(1) gauge sector is identified with the U(1) gauge fields of the super-GUT coupled to supergravity, whose gauge group has a U(1) factor. A positive cosmological constant (dark energy) is included. The scalar potential is calculated, and its de Sitter vacuum solution is found to be stable.
© The Author(s), 2017
