Split extended supersymmetry from intersecting branes

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dc.creatorAntoniadis, I.
dc.creatorBenakli, K.
dc.creatorDelgado, A.
dc.creatorQuirós, M.
dc.creatorTuckmantel, M.
dc.date2005-12-30
dc.date.accessioned2026-07-07T10:45:36Z
dc.date.available2026-07-07T10:45:36Z
dc.descriptionWe study string realizations of split extended supersymmetry, recently proposed in hep-ph/0507192. Supersymmetry is broken by small ($ε$) deformations of intersection angles of $D$-branes giving tree-level masses of order $m_0^2\sim εM_s^2$, where $M_s$ is the string scale, to localized scalars. We show through an explicit one-loop string amplitude computation that gauginos acquire hierarchically smaller Dirac masses $m_{1/2}^D \sim m_0^2/M_s$. We also evaluate the one-loop Higgsino mass, $μ$, and show that, in the absence of tree-level contributions, it behaves as $μ\sim m_0^4/M_s^3$. Finally we discuss an alternative suppression of scales using large extra dimensions. The latter is illustrated, for the case where the gauge bosons appear in N=4 representations, by an explicit string model with Standard Model gauge group, three generations of quarks and leptons and gauge coupling unification.
dc.description32 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-th/0601003
dc.identifierhttp://arxiv.org/abs/hep-th/0601003
dc.identifierNucl.Phys.B744:156-179,2006
dc.identifierdoi:10.1016/j.nuclphysb.2006.03.012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182963
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSplit extended supersymmetry from intersecting branes
dc.typetext

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