Article (Scientific journals)
Metastability bounds on the two Higgs doublet model
Barroso, Augusto; Ferreira, Pedro; Ivanov, Igor et al.
2013In Journal of High Energy Physics, 1306, p. 045
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Abstract :
[en] In the two Higgs doublet model, there is the possibility that the vacuum where the universe resides in is metastable. We present the tree-level bounds on the scalar potential parameters which have to be obeyed to prevent that situation. Analytical expressions for those bounds are shown for the most used potential, that with a softly broken Z 2 symmetry. The impact of those bounds on the model’s phenomenology is discussed in detail, as well as the importance of the current LHC results in determining whether the vacuum we live in is or is not stable. We demonstrate how the vacuum stability bounds can be obtained for the most generic CP-conserving potential, and provide a simple method to implement them.
Disciplines :
Physics
Author, co-author :
Barroso, Augusto;  University of Lisbon > CFTC
Ferreira, Pedro;  University of Lisbon > CFTC
Ivanov, Igor ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules
Santos, Rui;  University of Lisbon > CFTC
Language :
English
Title :
Metastability bounds on the two Higgs doublet model
Publication date :
June 2013
Journal title :
Journal of High Energy Physics
ISSN :
1126-6708
eISSN :
1029-8479
Publisher :
Institute of Physics Publishing (IOP), Bristol, United Kingdom
Volume :
1306
Pages :
045
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 August 2013

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