Gauge-invariant inflaton in the minimal supersymmetric standard model

Abstract

References (23)

Citing Articles

Download: PDF (104 kB) or Buy this Article (US$25) (Use Article Pack)

Rouzbeh Allahverdi,^1,2 Kari Enqvist,³ Juan Garcia-Bellido,⁴ and Anupam Mazumdar⁵
¹Perimeter Institute for Theoretical Physics, Waterloo, ON, N2L 2Y5, Canada
²Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 4M1, Canada
³Department of Physical Sciences, University of Helsinki, and Helsinki Institute of Physics, P.O. Box 64, FIN-00014, Helsinki, Finland
⁴Departamento de Física Teórica C-XI, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
⁵NORDITA, Blegdamsvej-17, Copenhagen-2100, Denmark

Received 3 June 2006; published 9 November 2006

We argue that all the necessary ingredients for successful inflationare present in the flat directions of the Minimally SupersymmetricStandard Model. We show that out of many gauge-invariant combinationsof squarks, sleptons, and Higgs bosons, there are two directions,LLe and udd, which are promising candidates for the inflaton.The model predicts more than 10³ e-foldings, with an inflationaryscale of H_inf~ [script O] (1–10) GeV, provides a tilted spectrum with an amplitudeof delta _H~10^-5 and a negligible tensor perturbation. The temperature ofthe thermalized plasma could be as low as T_rh~(1–10) TeV. Partsof the inflaton potential can be determined independently of cosmologyby future particle physics experiments.

URL:	http://link.aps.org/doi/10.1103/PhysRevLett.97.191304
DOI:	10.1103/PhysRevLett.97.191304
PACS:	98.80.Cq; 12.60.Jv 98.80.Cq Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.) 12.60.Jv Supersymmetric unified models YEAR: 2006

REFERENCES (23)

View in Separate Window/Tab

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

A. R. Liddle, A. Mazumdar, and F. E. Schunck, Phys. Rev. D 58, 061301(R) (1998);

Phys. Rev. D 60, 083506 (1999)

M. Dine and A. Kusenko, Rev. Mod. Phys. 76, 1 (2003).
M. Dine, L. Randall, and S. Thomas, Phys. Rev. Lett. 75, 398 (1995);
A. H. Guth, Phys. Rev. D 23, 347 (1981).
G. N. Felder, J. Garcia-Bellido, P. B. Greene, L. Kofman, A. D. Linde, and I. Tkachev, Phys. Rev. Lett. 87, 011601 (2001);

Phys. Rev. D 64, 123517 (2001)

A. R. Liddle and S. M. Leach, Phys. Rev. D 68, 103503 (2003).
J. Garcia-Bellido, D. Y. Grigoriev, A. Kusenko, and M. E. Shaposhnikov, Phys. Rev. D 60, 123504 (1999).
A. D. Linde and V. F. Mukhanov, Phys. Rev. D 56, R535 (1997).
K. Enqvist, S. Kasuya, and A. Mazumdar, Phys. Rev. Lett. 90, 091302 (2003);