%0 Conference Paper
%A Jeong, K. S.
%A Takahashi, F.
%T Stronger QCD in the early Universe to suppress axion isocurvature perturbations
%N DESY-PROC-2013-04
%C Hamburg
%I Verlag Deutsches Elektronen-Synchrotron
%M PUBDB-2018-02804
%M DESY-PROC-2013-04
%@ 978-3-935702-83-6 
%B DESY-PROC
%P 153-158
%D 2013
%< Jeong, K.S. "Stronger QCD in the early Universe to suppress axion isocurvature perturbations" in Proceedings, 9th Patras Workshop on Axions, WIMPs and WISPs (AXION-WIMP 2013) / Oberlack, Uwe, Sissol, Pierre (eds.), 2013 ; AXION-WIMP 2013 : 9th Patras Workshop on Axions, WIMPs and WISPs , 2013-06-23 - 2013-06-28, Mainz
%X A stronger QCD in the early Universe renders the axion heavy, and thus can suppress the isocurvature perturbations of axion dark matter, relaxing the constraint on the inflation scale. Supersymmetry provides a natural framework for this because there is a flat direction involving Higgs fields. Stabilized at a large value during inflation, the Higgs flat direction leads to that the QCD interaction becomes strong at a high energy scale, making high scale inflation scenarios compatible with axion dark matter.
%B 9th Patras Workshop on Axions, WIMPs and WISPs
%C 24 Jun 2013 - 28 Jun 2013, Mainz (Germany)
Y2 24 Jun 2013 - 28 Jun 2013
M2 Mainz, Germany
%K Hypothetisches Teilchen (gnd)
%F PUB:(DE-HGF)29 ; PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 ReportContribution to a conference proceedingsContribution to a book
%R 10.3204/DESY-PROC-2013-04/jeong_kwang_sik
%U https://bib-pubdb1.desy.de/record/408351