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Low-energy solution to theμproblem in gauge mediation

1999/05/12 by Paul Langacker, Nir Polonsky, Jing Wang · 60 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Gauge theory #Higgs boson #Minimal Supersymmetric Standard Model #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Physics #Supersymmetry #Yukawa potential #hep-ph

paper · pdf · doi:10.1103/physrevd.60.115005

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 60(11) (American Physical Society) · 17 pages. LaTex + RevTex. 3 figures (included). Includes a discussion of the CP problem and its solution

arxiv created 1999/05/12 · openalex publication_date 1999/11/03 · openalex created_date 2016/06/24 · arxiv updated 2016/08/24 · openalex updated_date 2026/08/05

Abstract

In the gauge-mediation framework the soft supersymmetry breaking mass parameters of the supersymmetric standard model are induced by the gauge interactions of some messenger fields. The parameters exhibit flavor universality which is dictated by the gauge interactions and which efficiently eliminates new dangerous contributions to flavor changing neutral currents. However, the Higgs potential in this framework typically contains an unacceptable hierarchy between its dimensionful parameters (the \ensuremathμ problem of gauge mediation). We show that the problem can be resolved if the Higgs potential arises dynamically once an intermediate U(1)^\ensuremath' sector is integrated out rather than arising radiatively from some Yukawa interactions at the messenger scale. As an added benefit, such models may naturally avoid new contributions to CP violating amplitudes. The proposed framework is described, explicit examples are given and its phenomenology is explored. The \ensuremathμ problem is resolved in this case by the low-energy U(1)^\ensuremath' dynamics which could be tested in future collider experiments.

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