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Title: Attraction towards an inflection point inflation

Abstract

Many models of high-energy physics possess metastable vacua. It is conceivable that the Universe can get trapped in such a false vacuum, irrespective of its origin and prior history, at an earlier stage during its evolution. The ensuing false vacuum inflation results in a cold and empty universe and has a generic graceful exit problem. We show that an inflection point inflation along the flat directions of the minimal supersymmetric standard model (MSSM) can resolve this graceful exit problem by inflating the bubble, which nucleates out of a false vacuum. The important point is that the initial condition for an MSSM inflation can be naturally realized, due to an attractor behavior toward the inflection point. We investigate these issues in detail and also present an example where metastable vacua, hence the false vacuum inflation, can happen within the MSSM.

Authors:
 [1];  [2];  [3]
  1. Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
  2. Department of Physics, Texas A and M University, College Station, Texas 77843-4242 (United States)
  3. Physics Department, Lancaster University, Lancaster, LA1 4YB (United Kingdom)
Publication Date:
OSTI Identifier:
21250815
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevD.78.063507; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ATTRACTORS; HIGH ENERGY PHYSICS; INFLATION; SIMULATION; STANDARD MODEL; SUPERSYMMETRY; TRAPPING; UNIVERSE

Citation Formats

Allahverdi, Rouzbeh, Dutta, Bhaskar, Mazumdar, Anupam, and Niels Bohr Institute, Blegdamsvej-17, Copenhagen-2100. Attraction towards an inflection point inflation. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.78.063507.
Allahverdi, Rouzbeh, Dutta, Bhaskar, Mazumdar, Anupam, & Niels Bohr Institute, Blegdamsvej-17, Copenhagen-2100. Attraction towards an inflection point inflation. United States. https://doi.org/10.1103/PHYSREVD.78.063507
Allahverdi, Rouzbeh, Dutta, Bhaskar, Mazumdar, Anupam, and Niels Bohr Institute, Blegdamsvej-17, Copenhagen-2100. Mon . "Attraction towards an inflection point inflation". United States. https://doi.org/10.1103/PHYSREVD.78.063507.
@article{osti_21250815,
title = {Attraction towards an inflection point inflation},
author = {Allahverdi, Rouzbeh and Dutta, Bhaskar and Mazumdar, Anupam and Niels Bohr Institute, Blegdamsvej-17, Copenhagen-2100},
abstractNote = {Many models of high-energy physics possess metastable vacua. It is conceivable that the Universe can get trapped in such a false vacuum, irrespective of its origin and prior history, at an earlier stage during its evolution. The ensuing false vacuum inflation results in a cold and empty universe and has a generic graceful exit problem. We show that an inflection point inflation along the flat directions of the minimal supersymmetric standard model (MSSM) can resolve this graceful exit problem by inflating the bubble, which nucleates out of a false vacuum. The important point is that the initial condition for an MSSM inflation can be naturally realized, due to an attractor behavior toward the inflection point. We investigate these issues in detail and also present an example where metastable vacua, hence the false vacuum inflation, can happen within the MSSM.},
doi = {10.1103/PHYSREVD.78.063507},
url = {https://www.osti.gov/biblio/21250815}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 6,
volume = 78,
place = {United States},
year = {2008},
month = {9}
}