Light sparticles from a light singlet in gauge mediation
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Abstract
We revisit a simple model that combines minimal gauge mediation and the next-to-minimal supersymmetric standard model. We show that one can obtain a 125 GeV Standard Model-like Higgs boson with stops as light as 1.1 TeV, thanks to the mixing of the Higgs with a singlet state at O(90-100) GeV. Sparticle searches at the LHC may come with additional b-jets or taus and may involve displaced vertices. The sparticle production cross-section at the 13 TeV LHC can be O(10-100) fb, leading to great prospects for discovery in the early phase of LHC Run II.
Description
Keywords
hep-ph, hep-ph, hep-ex
Journal Title
Physical Review D - Particles, Fields, Gravitation and Cosmology
Conference Name
Journal ISSN
1550-7998
1550-2368
1550-2368
Volume Title
92
Publisher
American Physical Society (APS)
Publisher DOI
Sponsorship
Science and Technology Facilities Council (ST/L000385/1)
Science and Technology Facilities Council (ST/J000434/1)
Science and Technology Facilities Council (ST/J000434/1)
This work has been partially supported by STFC grant ST/L000385/1. BCA and MB thank the Cambridge supersymmetry working group for helpful discussions. We thank L. Calibbi for discussions and collaboration at an early stage of this project. RZ thanks A. Falkowski, M. Goodsell, D. Redigolo and in particular P. Slavich for useful discussions. This work made in the ILP LABEX (under reference ANR-10-LABX-63) was partially supported by French state funds managed by the ANR within the Investissements d'Avenir programme under reference ANR-11-IDEX-0004-02. The authors acknowledge the support of France Grilles for providing computing resources on the French National Grid Infrastructure. This work is a part of the "Implications of the Higgs boson discovery on supersymmetric extensions of the Standard Model" project funded within the HOMING PLUS programme of the Foundation for Polish Science. MB has been partially supported by National Science Centre under research grant DEC-2012/05/B/ST2/02597 and the MNiSW grant IP2012 030272.