Sequestered de Sitter String Scenarios: Soft-terms

Abstract

We analyse soft supersymmetry breaking in type IIB de Sitter string vacua after moduli stabilisation, focussing on models in which the Standard Model is sequestered from the supersymmetry breaking sources and the spectrum of soft-terms is hierarchically smaller than the gravitino mass $m_{3/2}$. Due to this feature, these models are compatible with gauge coupling unification and TeV scale supersymmetry with no cosmological moduli problem. We determine the influence on soft-terms of concrete realisations of de Sitter vacua constructed from supersymmetric effective actions. One of these scenarios provides the first study of soft-terms for consistent string models embedded in a compact Calabi-Yau manifold with all moduli stabilised. Depending on the moduli dependence of the Kaehler metric for matter fields and on the mechanism responsible to obtain a de Sitter vacuum, we find two scenarios for phenomenology: (i) a split-supersymmetry scenario where gaugino masses are suppressed with respect to scalar masses: $M_{1/2}\sim m_{3/2}\epsilon \ll m_0\sim m_{3/2}\sqrt{\epsilon }\ll m_{3/2}$ for $\epsilon \sim m_{3/2}/M_P\ll 1$; (ii) a typical MSSM scenario where all soft-terms are of the same order: $M_{1/2}\sim m_0\sim m_{3/2}\epsilon \ll m_{3/2}$. Background fluxes determine the numerical coefficients of the soft-terms allowing for small variations of parameters as is necessary to confront data and to interpolate between different scenarios. We comment on different stringy origins of the mu-term and potential sources of desequestering.

27 pages + appendices, 2 figures

References in corpus (55)

• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications
• Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
• Natural SUSY Endures
• Large-Volume Flux Compactifications: Moduli Spectrum and D3/D7 Soft Supersymmetry Breaking
• Soft Supersymmetry Breaking in KKLT Flux Compactification
• SUSY, the Third Generation and the LHC
• On D3-brane Potentials in Compactifications with Fluxes and Wrapped D-branes
• Soft Supersymmetry Breaking in Calabi-Yau Orientifolds with D-branes and Fluxes
• General Analysis of LARGE Volume Scenarios with String Loop Moduli Stabilisation
• Flux-induced SUSY-breaking soft terms
• SUSY Breaking in Local String/F-Theory Models
• Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds
• Little SUSY hierarchy in mixed modulus-anomaly mediation
• D-Branes at del Pezzo Singularities: Global Embedding and Moduli Stabilisation
• Explicit de Sitter Flux Vacua for Global String Models with Chiral Matter
• Natural Supersymmetry: LHC, dark matter and ILC searches
• Soft SUSY Breaking Terms for Chiral Matter in IIB String Compactifications
• Supersymmetry Breaking from a Calabi-Yau Singularity
• Testing String Vacua in the Lab: From a Hidden CMB to Dark Forces in Flux Compactifications
• De Sitter String Vacua from Dilaton-dependent Non-perturbative Effects
• Towards Realistic String Vacua From Branes At Singularities
• Kahler Potentials of Chiral Matter Fields for Calabi-Yau String Compactifications
• The generalised NMSSM at one loop: fine tuning and phenomenology
• Moduli Stabilisation for Chiral Global Models
• Large D-terms, hierarchical soft spectra and moduli stabilisation
• LHC Coverage of RPV MSSM with Light Stops
• Gaugino and Scalar Masses in the Landscape
• Hide and Seek With Natural Supersymmetry at the LHC
• Modulus-dominated SUSY-breaking soft terms in F-theory and their test at LHC
• Instanton Induced Open String Superpotentials and Branes at Singularities
• D3/D7 Branes at Singularities: Constraints from Global Embedding and Moduli Stabilisation
• A Shift Symmetry in the Higgs Sector: Experimental Hints and Stringy Realizations
• Heterotic Moduli Stabilisation
• Sparticle Spectra and LHC Signatures for Large Volume String Compactifications
• Moduli Redefinitions and Moduli Stabilisation
• Gauge Threshold Corrections for Local String Models
• D-branes at Toric Singularities: Model Building, Yukawa Couplings and Flavour Physics
• Uber-naturalness: unexpectedly light scalars from supersymmetric extra dimensions
• Metastable SUSY Breaking, de Sitter Moduli Stabilisation and Kähler Moduli Inflation
• Gauge Threshold Corrections for Local Orientifolds
• The heterotic string yields natural supersymmetry
• Sequestering in String Compactifications
• Classical and Quantum SUSY Breaking Effects in IIB Local Models
• Mirror Mediation
• Focus Point in Gaugino Mediation ~ Reconsideration of the Fine-tuning Problem ~
• Sparticle Spectrum of Large Volume Compactification
• Towards a Systematic Construction of Realistic D-brane Models on a del Pezzo Singularity
• log(M_Pl/m_3/2)
• The heterotic MiniLandscape and the 126 GeV Higgs boson
• Scattering and Sequestering of Blow-Up Moduli in Local String Models
• Superpotential de-sequestering in string models
• Anomaly Mediation in Superstring Theory
• Anomalous U(1) Mediation in Large Volume Compactification
• The String Origin of SUSY Flavor Violation

Cited by in corpus (47)

• The Swampland: Introduction and Review
• What if string theory has no de Sitter vacua?
• Physics potential of the International Axion Observatory (IAXO)
• Cosmological Moduli and the Post-Inflationary Universe: A Critical Review
• De Sitter vs Quintessence in String Theory
• De Sitter from T-branes
• Robust Inflation from Fibrous Strings
• Dark Matter Production in an Early Matter Dominated Era
• Quantum Corrections and the de Sitter Swampland Conjecture
• Moduli Vacuum Misalignment and Precise Predictions in String Inflation
• ${\alpha }^{\prime }$ Inflation: Moduli Stabilisation and Observable Tensors from Higher Derivatives
• Global Orientifolded Quivers with Inflation
• A New Class of de Sitter Vacua in Type IIB Large Volume Compactifications
• String Theory Realizations of the Nilpotent Goldstino
• UV Shadows in EFTs: Accidental Symmetries, Robustness and No-Scale Supergravity
• Moduli Stabilisation with Nilpotent Goldstino: Vacuum Structure and SUSY Breaking
• The Standard Model Quiver in de Sitter String Compactifications
• Moduli Stars
• Quintessence and the Swampland: The numerically controlled regime of moduli space
• Systematics of the ${\alpha }^{\prime }$ Expansion in F-Theory
• Higgs and superparticle mass predictions from the string theory landscape
• Reheating and Dark Radiation after Fibre Inflation
• The Boundaries of KKLT
• Axions in String Theory $-$ Slaying the Hydra of Dark Radiation
• Microscopic Origin of Volume Modulus Inflation
• General Analysis of Dark Radiation in Sequestered String Models
• Thermal Dark Energy
• Affleck-Dine Baryogenesis in Type IIB String Models
• Moduli Stabilisation and the Statistics of SUSY Breaking in the Landscape
• Superheavy Dark Matter from String Theory
• The Dark Universe after Reheating in String Inflation
• Fibre inflation and precision CMB data
• The 3.5 keV Line from Stringy Axions
• SUSY's Ladder: Reframing Sequestering at Large Volume
• Dark matter and dark radiation from the early universe with a modulus coupled to the PQMSSM
• D3-brane model building and the supertrace rule
• Cosmic superstrings in large volume compactifications: PTAs, LISA and time-varying tension
• Joint Statistics of Cosmological Constant and SUSY Breaking in Flux Vacua with Nilpotent Goldstino
• Testing B-violating signatures from Exotic Instantons in future colliders
• Spontaneous CP Violation and Horizontal Symmetry in the MSSM: Toward Lepton Flavor Naturalness
• Third Generation in Cascade Decays
• Anomalous EDGES 21-cm Signal and Moduli Dominated Era
• Deciphering the MSSM Higgs Mass at Future Hadron Colliders
• Stringy constraints on primordial electromagnetic fields in axion inflation
• Inflating Kahler Moduli and Primordial Magnetic Fields
• Instanton induced Yukawa couplings from distant E3 and E(-1) instantons
• Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments