Upperbound on squark masses in gauge-mediation model with light gravitino

2008/04/18 by Junji Hisano, Minoru Nagai, Shohei Sugiyama +2
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Gauge (firearms) #Geography #Gluino #Gravitino #Mediation #Particle physics #Particle physics theoretical and experimental studies #Physics #Supergravity #Supersymmetry #Supersymmetry breaking #hep-ph

paper · pdf · doi:10.1016/j.physletb.2008.06.045

published as Phys.Lett.B665:237-241,2008 · 14 pages, 4 figures

arxiv created 2008/04/18 · openalex publication_date 2008/06/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We examine stabilities of our supersymmetry-breaking false vacuum in a low-energy direct gauge mediation model of SUSY breaking. The stability required in the high-temperature early universe leads to upperbounds on masses of squarks and gluino as m_q \lesssim 1 TeV and m_g \lesssim 1 TeV for the light gravitino of mass m_3/2 \lesssim 16 eV.

Citations

• Fate of the false vacuum: Semiclassical theory
• Fate of the false vacuum. II. First quantum corrections
• Gravitino-overproduction problem in an inflationary universe
• Anomaly-induced inflaton decay and gravitino-overproduction problem