%0 Journal Article
%T Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
%+ Institute of Theoretical Physics [Warsaw]
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%+ CERN [Genève]
%A Badziak, Marcin
%A Desai, Nishita
%A Hugonie, Cyril
%A Ziegler, Robert
%< avec comité de lecture
%@ 1434-6044
%J European Physical Journal C: Particles and Fields
%I Springer Verlag (Germany)
%V 79
%N 1
%P 67
%8 2019
%D 2019
%Z 1810.05618
%R 10.1140/epjc/s10052-019-6590-1
%K new physics
%K supersymmetry: symmetry breaking
%K mediation: gauge
%K minimal supersymmetric standard model
%K CERN LHC Coll
%K p p: scattering
%K sparticle: production
%K sparticle: signature
%K gluino: mass
%K gluino: heavy
%K jet: bottom
%K neutralino: mass
%K gravitino: mass
%K gravitino: decay
%K decay: length
%Z Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Journal articles
%X We analyze models of extended gauge Mediation in the context of the NMSSM, concentrating on supersymmetric spectra with light gluinos, low fine-tuning and decays of the lightest neutralino leading to displaced vertices. While the minimal scenario has rather heavy gluinos as a result of restrictions from the Higgs sector, we propose two new models in which the gluino can be as light as allowed by direct searches at the LHC, with a mass of about $1.7 \, \mathrm{TeV}$ and $2.0 \, \mathrm{TeV}$ , respectively. Both models have a tuning of a few permille, and lead to an interesting phenomenology due to a light singlet sector. A singlet state at around 98 GeV can account for the LEP excess, while the singlino has a mass of the order of 100 GeV and decays to b-jets and the gravitino, with decay lengths of a few cm.
%G English
%2 https://hal.science/hal-01909229/document
%2 https://hal.science/hal-01909229/file/s10052-019-6590-1.pdf
%L hal-01909229
%U https://hal.science/hal-01909229
%~ IN2P3
%~ CNRS
%~ LUPM
%~ FRANCE-GRILLES
%~ UNIV-MONTPELLIER
%~ AMIDEX
%~ LUPM_IFAC
%~ ANR
%~ UM-2015-2021