Phenomenology ofdeflected mirage mediation

Yongyan RaoCollaborators:

L. Everett, I.W. Kim (UW), B. Nelson, B. Altayunak (NEU)

Content• Deflected mirage mediation (DMM)• Phenomenology of DMM• Summary• Reference: B. Altayunak, L.L. Everett, I.W. Kim, B. Nelson, Y.R., hep-ph/1001.5261 Work in progress: B. Altayunak, L.L. Everett, I.W. Kim, B. Nelson, Y.R.

SUSY breaking mechanisms• SUSY spontaneous breaking in “hidden” sector,

communicated by “mediator” fields

• 3 standard mediation mechanisms: (1) Gravity (2) Gauge (3) Anomaly

“Deflected” mirage mediation

Parameter space:• 2 mass scale: M0 Mmess• 4 dimensionless: N αm αg tanβ• 1 sign

[L.L. Everett, I.W. Kim, et al., hep-ph/0806.2330L.L. Everett, I.W. Kim, et al., hep-ph/0804.0592]

CC

Stabilization of T & X moduli

String setup: generically includes SM singlet X (vev FX) + messengers (SM charged exotic vector pairs) These ingredients (after T and X stabilization) can lead to gauge mediation terms that can be comparable to the anomaly and gravity mediation contributions of mirage mediation! And also

Why “deflected”?

mirage unification

deflection

Deflection can be dramatic!

DMM Phenomenology• RG running + Mass spectrum• Mirage unification behavior: deflection of mirage unification scale generically only present in gaugino sector• Mass Spectrum:

– Compressed vs. stretched spectrum– Gluino not always the heaviest– Light heavy Higgs combinations: HAH±, AHH±

RG running & mass spectrum

• N = 3• αm = 1• αg = 1• Mmess = 1012

GeV• M0 = 1 TeV• tanβ = 10• μ > 0

RG running & mass spectrum

• N = 3• αm = 1• αg = -0.5• Mmess = 1012

GeV• M0 = 1 TeV• tanβ = 10• μ > 0

RG running & mass spectrum

• N = 3• αm = 1• αg = 1• Mmess = 105

GeV• M0 = 1 TeV• tanβ = 10• μ > 0

Mass spectrum statistics

• Scan over1≤N≤5104GeV≤Mmess≤1016GeV50GeV≤ M0 ≤2000GeV0≤ αm ≤2-1≤ αg ≤11≤ tanβ ≤60

Summary

• DMM: Rich Framework for SUSY breaking. Theoretically-motivated scenario for nonuniversal SUSY breaking models (top-down approach)• Many general models with only a few new parameters

– 2 mass scales, 4+ dimensionless parameters, 1 sign (compare mSUGRA: 3 mass scales, 1 dimensionless, 1 sign)• New features in phenomenology

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