Modular cosmology, thermal inflation, baryogenesis and a prediction for particle accelerators

Donghui Jeong, Wan Il Park, Ewan D. Stewart, Kenji Kadota

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Modular cosmology is plagued by overproduction of unwanted relics, gravitinos and especially moduli, at relatively low energy scales. Thermal inflation provides a compelling solution to this moduli problem, but invalidates most baryogenesis scenarios. We propose a simple model in which the MSSM plus neutrino mass term (LHu)2 is supplemented by a minimal flaton sector to drive the thermal inflation, and make two crucial assumptions: the flaton vacuum expectation value generates the μ-term of the MSSM and mL2 + mHu2 < 0. The second assumption is particularly interesting in that it violates a well known constraint, implying that there exists a nearby deep non-MSSM vacuum, and provides a clear signature of our model which can be tested at future particle accelerators. We show that our model leads to thermal inflation followed by Affleck-Dine leptogenensis along the LHu flat direction. A key feature of our leptogenesis scenario is that the HuHd flat direction is also induced to temporarily acquire a large value, playing a crucial role in the leptogenesis, as well as dynamically shielding the field configuration from the deep non-MSSM minimum, ensuring that the fields relax into our MSSM vacuum.

Original languageEnglish (US)
Pages (from-to)1227-1244
Number of pages18
JournalJournal of High Energy Physics
Volume8
Issue number11
StatePublished - Nov 1 2004

Fingerprint

particle accelerators
cosmology
vacuum
predictions
gravitinos
shielding
sectors
neutrinos
signatures
configurations
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Jeong, Donghui ; Park, Wan Il ; Stewart, Ewan D. ; Kadota, Kenji. / Modular cosmology, thermal inflation, baryogenesis and a prediction for particle accelerators. In: Journal of High Energy Physics. 2004 ; Vol. 8, No. 11. pp. 1227-1244.
@article{66d4868dbbf14af382aced1539bea6f9,
title = "Modular cosmology, thermal inflation, baryogenesis and a prediction for particle accelerators",
abstract = "Modular cosmology is plagued by overproduction of unwanted relics, gravitinos and especially moduli, at relatively low energy scales. Thermal inflation provides a compelling solution to this moduli problem, but invalidates most baryogenesis scenarios. We propose a simple model in which the MSSM plus neutrino mass term (LHu)2 is supplemented by a minimal flaton sector to drive the thermal inflation, and make two crucial assumptions: the flaton vacuum expectation value generates the μ-term of the MSSM and mL2 + mHu2 < 0. The second assumption is particularly interesting in that it violates a well known constraint, implying that there exists a nearby deep non-MSSM vacuum, and provides a clear signature of our model which can be tested at future particle accelerators. We show that our model leads to thermal inflation followed by Affleck-Dine leptogenensis along the LHu flat direction. A key feature of our leptogenesis scenario is that the HuHd flat direction is also induced to temporarily acquire a large value, playing a crucial role in the leptogenesis, as well as dynamically shielding the field configuration from the deep non-MSSM minimum, ensuring that the fields relax into our MSSM vacuum.",
author = "Donghui Jeong and Park, {Wan Il} and Stewart, {Ewan D.} and Kenji Kadota",
year = "2004",
month = "11",
day = "1",
language = "English (US)",
volume = "8",
pages = "1227--1244",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "11",

}

Modular cosmology, thermal inflation, baryogenesis and a prediction for particle accelerators. / Jeong, Donghui; Park, Wan Il; Stewart, Ewan D.; Kadota, Kenji.

In: Journal of High Energy Physics, Vol. 8, No. 11, 01.11.2004, p. 1227-1244.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Modular cosmology, thermal inflation, baryogenesis and a prediction for particle accelerators

AU - Jeong, Donghui

AU - Park, Wan Il

AU - Stewart, Ewan D.

AU - Kadota, Kenji

PY - 2004/11/1

Y1 - 2004/11/1

N2 - Modular cosmology is plagued by overproduction of unwanted relics, gravitinos and especially moduli, at relatively low energy scales. Thermal inflation provides a compelling solution to this moduli problem, but invalidates most baryogenesis scenarios. We propose a simple model in which the MSSM plus neutrino mass term (LHu)2 is supplemented by a minimal flaton sector to drive the thermal inflation, and make two crucial assumptions: the flaton vacuum expectation value generates the μ-term of the MSSM and mL2 + mHu2 < 0. The second assumption is particularly interesting in that it violates a well known constraint, implying that there exists a nearby deep non-MSSM vacuum, and provides a clear signature of our model which can be tested at future particle accelerators. We show that our model leads to thermal inflation followed by Affleck-Dine leptogenensis along the LHu flat direction. A key feature of our leptogenesis scenario is that the HuHd flat direction is also induced to temporarily acquire a large value, playing a crucial role in the leptogenesis, as well as dynamically shielding the field configuration from the deep non-MSSM minimum, ensuring that the fields relax into our MSSM vacuum.

AB - Modular cosmology is plagued by overproduction of unwanted relics, gravitinos and especially moduli, at relatively low energy scales. Thermal inflation provides a compelling solution to this moduli problem, but invalidates most baryogenesis scenarios. We propose a simple model in which the MSSM plus neutrino mass term (LHu)2 is supplemented by a minimal flaton sector to drive the thermal inflation, and make two crucial assumptions: the flaton vacuum expectation value generates the μ-term of the MSSM and mL2 + mHu2 < 0. The second assumption is particularly interesting in that it violates a well known constraint, implying that there exists a nearby deep non-MSSM vacuum, and provides a clear signature of our model which can be tested at future particle accelerators. We show that our model leads to thermal inflation followed by Affleck-Dine leptogenensis along the LHu flat direction. A key feature of our leptogenesis scenario is that the HuHd flat direction is also induced to temporarily acquire a large value, playing a crucial role in the leptogenesis, as well as dynamically shielding the field configuration from the deep non-MSSM minimum, ensuring that the fields relax into our MSSM vacuum.

UR - http://www.scopus.com/inward/record.url?scp=23044495807&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23044495807&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:23044495807

VL - 8

SP - 1227

EP - 1244

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 11

ER -