Soft SUSY breaking and family symmetry | Zendy

Michael R Ramage | Zendy; G.G. Ross | Zendy

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Soft SUSY breaking and family symmetry

Author(s) -

Michael R Ramage,

G.G. Ross

Publication year - 2005

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2005/08/031

Subject(s) - physics , particle physics , supersymmetry , symmetry breaking , neutrino , lepton , quark , degeneracy (biology) , supersymmetry breaking , spontaneous symmetry breaking , mixing (physics) , dark matter , nuclear physics , quantum mechanics , bioinformatics , biology , electron

A spontaneously broken non-Abelian SU(3) family symmetry can generate arealistic form for quark, charged lepton and neutrino masses and mixing angles.It also gives a new solution to the SUSY flavour problem by ensuring nearfamily degeneracy of the soft mass SUSY breaking terms. However the need togenerate large third generation fermion masses means that the group must bestrongly broken to SU(2) giving significant corrections to the third familysquark and slepton masses. We investigate the phenomenological implications ofsuch breaking and show that it leads to new solutions capable of fitting allpresent experimental measurements and bounds as well as the dark matterabundance.Comment: LaTeX, 16 pages, 4 figures. Updated refs. Uses JHEP3.cl

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