%0 Journal Article
%T Naturalness and Fine Tuning in the NMSSM: Implications of Early LHC Results
%+ Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT)
%+ Laboratoire Charles Coulomb (L2C)
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%A Ellwanger, Ulrich
%A Espitalier Noel, Grégory
%A Hugonie, Cyril
%Z 19 pages , 10 figures
%< avec comité de lecture
%Z L2C:11-095
%@ 1126-6708
%J Journal of High Energy Physics
%I Springer
%V 1109
%P 105
%8 2011
%D 2011
%Z 1107.2472
%R 10.1007/JHEP09(2011)105
%Z Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Journal articles
%X We study the fine tuning in the parameter space of the semi-constrained NMSSM, where most soft Susy breaking parameters are universal at the GUT scale. We discuss the dependence of the fine tuning on the soft Susy breaking parameters M_1/2 and m0, and on the Higgs masses in NMSSM specific scenarios involving large singlet-doublet Higgs mixing or dominant Higgs-to-Higgs decays. Whereas these latter scenarios allow a priori for considerably less fine tuning than the constrained MSSM, the early LHC results rule out a large part of the parameter space of the semi-constrained NMSSM corresponding to low values of the fine tuning.
%G English
%2 https://hal.science/hal-00609283/document
%2 https://hal.science/hal-00609283/file/Ellwanger2011_Article_NaturalnessAndFineTuningInTheN.pdf
%L hal-00609283
%U https://hal.science/hal-00609283
%~ IN2P3
%~ CNRS
%~ UNIV-MONTP2
%~ UNIV-PSUD
%~ L2C
%~ LUPM
%~ UNIV-PARIS-SACLAY
%~ UNIV-PSUD-SACLAY
%~ MIPS
%~ UNIV-MONTPELLIER
%~ LUPM_IFAC
%~ UM1-UM2
%~ UM-2015-2021