2016/10/19 by Zhaofeng Kang, Kang, Zhaofeng
Mathematics · Medicine · #FOS: Physical sciences #HER2/EGFR in Cancer Research #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Monoclonal and Polyclonal Antibodies Research #Spectral Theory in Mathematical Physics
paper · pdf · doi:10.48550/arxiv.1610.06024
openalex publication_date 2016/10/19 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
Gauge mediated supersymmetry (SUSY)-breaking (GMSB) furnishes the best idea to overcome the flavor problem in SSMs, supersymmetric stand models (SM). However, implemented in the minimal SSM (MSSM), a very serious fine-tuning problem arises, owing to the absence of a large At term in the stop sector to radiatively enhance the SM-like Higgs boson mass. In the extended GMSB coupling Hu to messengers can alleviate this problem but encounters the At/mHu2 problem, i.e., at the same time a large mHu2 is generated, rendering radiative electroweak spontaneously breaking (EWSB) problematic. This issue shows similarity to another long-standing problem of GMSB, the μ/Bμ problem, and, of great interest, we find that they may admit the same solution, nonradiative EWSB. Such a solution is naturally accommodated when both Hu and Hd couple to messengers. As a bonus of nonradiative EWSB, the sleptons tend to be very light due to the significant renormalization group equation effect and they are able to account for the (g-2)μ puzzle. As a concrete example, we investigate a hidden sector with (10, 10) messengers.