Published January 2014 | Version v1
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A precision study of the fine tuning in the DiracNMSSM

  • 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  • 2. Oxford Univ. (United Kingdom). Rudolf Peierls Centre for Theoretical Physics
  • 3. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  • 4. Bonn Univ. (Germany). Physikalisches Inst.
  • 5. Bonn Univ. (Germany). Bethe Center for Theoretical Physics

Description

Recently the DiracNMSSM has been proposed as a possible solution to reduce the fine tuning in supersymmetry. We determine the degree of fine tuning needed in the DiracNMSSM with and without non-universal gaugino masses and compare it with the fine tuning in the GNMSSM. To apply reasonable cuts on the allowed parameter regions we perform a precise calculation of the Higgs mass. In addition, we include the limits from direct SUSY searches and dark matter abundance. We find that both models are comparable in terms of fine tuning, with the minimal fine tuning in the GNMSSM slightly smaller.

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Publishing Information

Imprint Pagination
39 p.
ISSN
0418-9833
Report number
DESY--13-256

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