Simple scheme for gauge mediation
Abstract
We present a simple scheme for constructing models that achieve successful gauge mediation of supersymmetry breaking. In addition to our previous work [H. Murayama and Y. Nomura, Phys. Rev. Lett. 98, 151803 (2007)] that proposed drastically simplified models using metastable vacua of supersymmetry breaking in vectorlike theories, we show there are many other successful models using various types of supersymmetrybreaking mechanisms that rely on enhanced lowenergy U(1){sub R} symmetries. In models where supersymmetry is broken by elementary singlets, one needs to assume U(1){sub R} violating effects are accidentally small, while in models where composite fields break supersymmetry, emergence of approximate lowenergy U(1){sub R} symmetries can be understood simply on dimensional grounds. Even though the scheme still requires somewhat small parameters to sufficiently suppress gravity mediation, we discuss their possible origins due to dimensional transmutation. The scheme accommodates a wide range of the gravitino mass to avoid cosmological problems.
 Authors:
 Department of Physics, University of California, Berkeley, California 94720, USA and Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
 Publication Date:
 OSTI Identifier:
 21020512
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.75.095011; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMOLOGY; GAUGE INVARIANCE; GRAVITATION; METASTABLE STATES; SUPERSYMMETRY; SYMMETRY BREAKING; U1 GROUPS; VACUUM STATES
Citation Formats
Murayama, Hitoshi, and Nomura, Yasunori. Simple scheme for gauge mediation. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.095011.
Murayama, Hitoshi, & Nomura, Yasunori. Simple scheme for gauge mediation. United States. doi:10.1103/PHYSREVD.75.095011.
Murayama, Hitoshi, and Nomura, Yasunori. Tue .
"Simple scheme for gauge mediation". United States.
doi:10.1103/PHYSREVD.75.095011.
@article{osti_21020512,
title = {Simple scheme for gauge mediation},
author = {Murayama, Hitoshi and Nomura, Yasunori},
abstractNote = {We present a simple scheme for constructing models that achieve successful gauge mediation of supersymmetry breaking. In addition to our previous work [H. Murayama and Y. Nomura, Phys. Rev. Lett. 98, 151803 (2007)] that proposed drastically simplified models using metastable vacua of supersymmetry breaking in vectorlike theories, we show there are many other successful models using various types of supersymmetrybreaking mechanisms that rely on enhanced lowenergy U(1){sub R} symmetries. In models where supersymmetry is broken by elementary singlets, one needs to assume U(1){sub R} violating effects are accidentally small, while in models where composite fields break supersymmetry, emergence of approximate lowenergy U(1){sub R} symmetries can be understood simply on dimensional grounds. Even though the scheme still requires somewhat small parameters to sufficiently suppress gravity mediation, we discuss their possible origins due to dimensional transmutation. The scheme accommodates a wide range of the gravitino mass to avoid cosmological problems.},
doi = {10.1103/PHYSREVD.75.095011},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 75,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}

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