Evading death by vacuum

[en] In the Standard Model, the Higgs potential allows only one minimum at tree level. But the open possibility that there might be two scalar doublets enriches the vacuum structure, allowing for the risk that we might now be in a metastable state, which we dub the panic vacuum. Current experiments at the LHC are probing the Higgs particle predicted as a result of the spontaneous symmetry breaking. Remarkably, in the two Higgs model with a softly broken U(1) symmetry, the LHC experiments already allow to exclude many panic vacuum solutions.

Disciplines :

Physics

Author, co-author :

Barroso, Augusto

Ferreira, Pedro

Ivanov, Igor ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules

Santos, Rui

Silva, Joao

Language :

English

Title :

Evading death by vacuum

Publication date :

04 September 2013

Journal title :

European Physical Journal C. Particles and Fields

ISSN :

1434-6044

eISSN :

1434-6052

Publisher :

Springer Science & Business Media B.V., New York, United States - New York

Volume :

Pages :

2537

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://arxiv.org/abs/arXiv:1211.6119

Available on ORBi :

since 16 December 2012

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