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Gauge mediation simplified.

Hitoshi Murayama1, Yasunori Nomura

  • 1Department of Physics, University of California, Berkeley, California 94720, USA.

Physical Review Letters
|May 16, 2007
PubMed
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Gauge mediation of supersymmetry breaking is simplified using generic superpotentials. This approach utilizes metastable vacua, avoiding the need for U(1)R symmetry, making theories more accessible.

Area of Science:

  • High Energy Physics
  • Theoretical Physics
  • Supersymmetry

Background:

  • Gauge mediation is a leading mechanism for transmitting supersymmetry breaking to the visible sector.
  • Previous models often relied on U(1)R symmetry, posing theoretical challenges.
  • The existence of metastable vacua in supersymmetric theories is a key consideration for model building.

Purpose of the Study:

  • To simplify gauge mediation of supersymmetry breaking.
  • To explore alternative frameworks that do not require U(1)R symmetry.
  • To investigate the role of metastable vacua in constructing realistic models.

Main Methods:

  • Utilizing generic superpotentials.
  • Introducing and analyzing metastable vacua.

Related Experiment Videos

  • Developing a simplified gauge mediation framework without U(1)R symmetry.

    • Main Results:

    • A drastically simplified mechanism for gauge mediation of supersymmetry breaking has been developed.
    • The necessity of U(1)R symmetry is circumvented by employing generic superpotentials.
    • Metastable vacua are shown to be a viable and effective feature for this simplified mediation.

    Conclusions:

    • Gauge mediation can be achieved more simply and broadly without U(1)R symmetry.
    • The inclusion of metastable vacua provides a powerful tool for model construction in supersymmetry.
    • This work opens new avenues for phenomenological studies of supersymmetry breaking.