TY - JOUR
T1 - A natural scenario for heavy colored and light uncolored superpartners
AU - Bhattacharyya, Gautam
AU - Bhattacherjee, Biplob
AU - Yanagida, Tsutomu T.
AU - Yokozaki, Norimi
N1 - Funding Information:
G.B. thanks Kavli IPMU for hospitality when the work was done. N.Y. thanks S. Sugimoto for useful discussion. We all thank M. Ibe and S. Matsumoto for discussions at the early stage of this work. The work of N.Y. is supported in part by JSPS Research Fellowships for Young Scientists . This work is also supported by the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan .
PY - 2013/10/1
Y1 - 2013/10/1
N2 - Influenced by the current trend of experimental data, especially from the LHC, we construct a supersymmetric scenario where a natural dynamics makes the squarks and gluino super-heavy (order 10 TeV) while keeping the sleptons and the weak gauginos light (100-500 GeV). The dynamics relies on the interfusion of two underlying ideas: (i) gauge mediation of supersymmetry breaking with two messenger multiplets, one transforming as a triplet of weak SU(2) and the other as an octet of color SU(3); (ii) perturbative gauge coupling unification at the string scale even with these incomplete SU(5) multiplets. Interestingly, the relative magnitude of the triplet and octet messenger scales that ensures gauge unification at the two-loop level also helps to naturally keep the uncolored superpartners light while making the colored ones heavy.
AB - Influenced by the current trend of experimental data, especially from the LHC, we construct a supersymmetric scenario where a natural dynamics makes the squarks and gluino super-heavy (order 10 TeV) while keeping the sleptons and the weak gauginos light (100-500 GeV). The dynamics relies on the interfusion of two underlying ideas: (i) gauge mediation of supersymmetry breaking with two messenger multiplets, one transforming as a triplet of weak SU(2) and the other as an octet of color SU(3); (ii) perturbative gauge coupling unification at the string scale even with these incomplete SU(5) multiplets. Interestingly, the relative magnitude of the triplet and octet messenger scales that ensures gauge unification at the two-loop level also helps to naturally keep the uncolored superpartners light while making the colored ones heavy.
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U2 - 10.1016/j.physletb.2013.07.040
DO - 10.1016/j.physletb.2013.07.040
M3 - Article
AN - SCOPUS:84883055885
VL - 725
SP - 339
EP - 343
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 4-5
ER -