36,889 research outputs found

    The Fluxed MSSM

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    Recent developemnts in string compactifications in the presence of antisymmetric field backgrounds suggest a new simple and predictive structure for soft terms in the MSSM depending only on two parameters. They give rise to a positive definite scalar potential, a solution to the μ\mu -problem, flavor universality and absence of a SUSY-CP problem.Comment: 23 pages, no figures. Addendum on intersecting D7-branes included. Referencese added and minor change

    SU(N)→Z(N){\rm SU}(N) \to {\rm Z}(N) dual superconductor models: the magnetic loop ensemble point of view

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    In this work, we initially discuss some physical properties of effective SU(N)→Z(N){\rm SU}(N) \to {\rm Z}(N) YMH models, emphasizing the important role of valence gluons. Next, we review how adjoint fields are naturally generated as an effective description of "adjoint" loops in 4D4D. Finally, we discuss the consequences that can be learnt from this point of view, and briefly comment on some improvements.Comment: 14 pages, 7 figures, proceedings of the XII Quark Confinement conference, Thessaloniki, Greece, from 28th August to 4rd September 201
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