Abstract
We consider recent experimental limits on the scalar bosons in the λSUSY framework, in which the masses of the scalar particles are increased already at tree level via a largish supersymmetric coupling between the usual Higgs doublets and a singlet. We analyze in particular the two lightest scalars, discussing the regions of parameter space excluded by LHC data.
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Notes
We call this framework λSUSY to stress the importance of the higher value of the λ coupling.
This can be justified since the singlino component of the LSP is always below 10 % for our choice of parameters.
The case of the lightest scalar has been analyzed in detail in [22], where, however, the experimental LHC bounds were not taken into account.
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Acknowledgements
We thank Riccardo Barbieri for important suggestions and for reading the manuscript. This work is supported in part by the European Programme “Unification in the LHC Era”, contract PITN-GA-2009-237920 (UNILHC). E.B. acknowledges support from the Agence Nationale de la Recherche under contract ANR 2010 BLANC 0413 01.
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Laboratoire de la Direction des Sciences de la Matière du Commissariat à l’Energie Atomique et Unité de Recherche associée au CNRS (URA 2306).
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Bertuzzo, E., Farina, M. Detecting the Higgs boson(s) in λSUSY. Eur. Phys. J. C 72, 2054 (2012). https://doi.org/10.1140/epjc/s10052-012-2054-6
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DOI: https://doi.org/10.1140/epjc/s10052-012-2054-6