Gauge mediation with Dterm SUSY breaking
Abstract
We construct a gaugemediation model with a Dterm supersymmetry (SUSY) breaking. Rsymmetry breaking necessary for generating the SUSY standardmodel gaugino masses is given by gaugino condensation of a strongly coupled gauge theory in the hidden sector. The energy scale of the strong dynamics of the hidden sector gauge theory should be around the messenger mass scale M, or otherwise perturbative calculations would be reliable and would lead to negative soft mass squared for squarks and sleptons. Thus, all the mass scales are controlled by a virtually single parameter, \sqrt{D}/M. This model covers a very wide range of gravitino mass, m_{3/2} \simeq 1 eV100 TeV. Possible embeddings of the model in string theory are also discussed.
 Authors:
 Publication Date:
 Research Org.:
 Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
 Sponsoring Org.:
 Physics Division
 OSTI Identifier:
 934488
 Report Number(s):
 LBNL406E
TRN: US0803915
 DOE Contract Number:
 DEAC0205CH11231
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics Letters B; Journal Volume: 655; Related Information: Journal Publication Date: 25 October 2007
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72; STANDARD MODEL; SUPERSYMMETRY; PHYSICS; upersymmetry, symmetry breaking, gaugino, mass, R parity, violation, gaugino, condensation, gauge field theory, strong coupling, string model, membrane model, Dbrane
Citation Formats
Watari, Taizan, Nakayama, Y., Taki, Masato, Watari, Taizan, and Yanagida, T.T.. Gauge mediation with Dterm SUSY breaking. United States: N. p., 2007.
Web.
Watari, Taizan, Nakayama, Y., Taki, Masato, Watari, Taizan, & Yanagida, T.T.. Gauge mediation with Dterm SUSY breaking. United States.
Watari, Taizan, Nakayama, Y., Taki, Masato, Watari, Taizan, and Yanagida, T.T.. Mon .
"Gauge mediation with Dterm SUSY breaking". United States.
doi:. https://www.osti.gov/servlets/purl/934488.
@article{osti_934488,
title = {Gauge mediation with Dterm SUSY breaking},
author = {Watari, Taizan and Nakayama, Y. and Taki, Masato and Watari, Taizan and Yanagida, T.T.},
abstractNote = {We construct a gaugemediation model with a Dterm supersymmetry (SUSY) breaking. Rsymmetry breaking necessary for generating the SUSY standardmodel gaugino masses is given by gaugino condensation of a strongly coupled gauge theory in the hidden sector. The energy scale of the strong dynamics of the hidden sector gauge theory should be around the messenger mass scale M, or otherwise perturbative calculations would be reliable and would lead to negative soft mass squared for squarks and sleptons. Thus, all the mass scales are controlled by a virtually single parameter, \sqrt{D}/M. This model covers a very wide range of gravitino mass, m_{3/2} \simeq 1 eV100 TeV. Possible embeddings of the model in string theory are also discussed.},
doi = {},
journal = {Physics Letters B},
number = ,
volume = 655,
place = {United States},
year = {Mon May 07 00:00:00 EDT 2007},
month = {Mon May 07 00:00:00 EDT 2007}
}

We show a calculable example of stable supersymmetry (SUSY) breaking modelswith O(10) eV gravitino mass based on the combination of Dterm gauge mediationand U(1)' mediation. A potential problem of the negative mass squared for theSUSY standard model (SSM) sfermions in the Dterm gauge mediation is solvedby the contribution from the U(1)' mediation. On the other hand, the splittingbetween the SSM gauginos and sfermions in the U(1)' mediation iscircumvented bythe contributions from the Dterm gauge mediation. Since the U(1)' mediation doesnot introduce any new SUSY vacua, we achieve a completely stable model underthermal effects. Our model, therefore, has no cosmological difficulty.

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