Starobinsky-like inflation, supercosmology and neutrino masses in no-scale flipped SU(5)

被引：37

作者：

Ellis, John ^{[1
,2
]}

Garcia, Marcos A. G. ^{[3
]}

Nagata, Natsumi ^{[4
]}

Nanopoulos, Dimitri V. ^{[5
,6
,7
]}

Olive, Keith A. ^{[8
]}

机构：

[1] Kings Coll London, Dept Phys, Theoret Particle Phys & Cosmol Grp, London WC2R 2LS, England

[2] CERN, Div Theoret Phys, CH-1211 Geneva 23, Switzerland

[3] Rice Univ, Dept Phys & Astron, 6100 Main St, Houston, TX 77005 USA

[4] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[5] Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA

[6] Houston Adv Res Ctr, Astroparticle Phys Grp, Mitchell Campus, The Woodlands, TX 77381 USA

[7] Acad Athens, Div Nat Sci, 28 Panepistimiou Ave, Athens 10679, Greece

[8] Univ Minnesota, Sch Phys & Astron, William I Fine Theoret Phys Inst, 116 Church St SE, Minneapolis, MN 55455 USA

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 07期

关键词：

baryon asymmetry; inflation; neutrino masses from cosmology; supersymmetry and cosmology; BIG-BANG NUCLEOSYNTHESIS; LATE-DECAYING PARTICLES; PROTON-DECAY; COSMOLOGICAL CONSTRAINTS; FERMION MASSES; HADRONIC DECAY; PRIMORDIAL NUCLEOSYNTHESIS; SYMMETRY-BREAKING; MASSIVE PARTICLE; RADIATIVE DECAY;

D O I：

10.1088/1475-7516/2017/07/006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We embed a flipped SU(5) x U(1) GUT model in a no-scale supergravity framework, and discuss its predictions for cosmic microwave background observables, which are similar to those of the Starobinsky model of inflation. Measurements of the tilt in the spectrum of scalar perturbations in the cosmic microwave background, n(s), constrain significantly the model parameters. We also discuss the model's predictions for neutrino masses, and pay particular attention to the behaviours of scalar fields during and after inflation, reheating and the GUT phase transition. We argue in favor of strong reheating in order to avoid excessive entropy production which could dilute the generated baryon asymmetry.

引用

页数：46

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