Radiative Electroweak symmetry breaking in the MSSM and Low Energy Thresholds

Abstract

We study Radiative Electroweak Symmetry Breaking in the Minimal Supersymmetric Standard Model (MSSM). We employ the 2-loop Renormalization Group equations for running masses and couplings taking into account sparticle threshold effects. The decoupling of each particle below its threshold is realized by a step function in all one-loop Renormalization Group equations (RGE). This program requires the calculation of all wavefunction, vertex and mass renormalizations for all particles involved. Adapting our numerical routines to take care of the succesive decoupling of each particle below its threshold, we compute the mass spectrum of sparticles and Higgses consistent with the existing experimental constraints. The effect of the threshold corrections is in general of the same order of magnitude as the two-loop contributions with the exception of the heavy Higgses and those neutralino and chargino states that are nearly

39 pages, Latex, conclusions,description of numerical analysis expanded.References added

References in corpus (14)

• Observation of the Top Quark
• ANALYTICAL EXPRESSIONS FOR RADIATIVELY CORRECTED HIGGS MASSES AND COUPLINGS IN THE MSSM
• The Lightest Higgs Boson Mass in the Minimal Supersymmetric Standard Model
• Soft supersymmetry breaking and finiteness
• Implications of non-universality of soft terms in supersymmetric grand unified theories
• Decoupling of the $\epsilon$-scalar mass in softly broken supersymmetry
• Non-Universal GUT Corrections to the Soft Terms and their Implications in Supergravity Models
• Effective Mu-Term in Superstring Theory
• Precision Corrections to Supersymmetric Unification
• The strong coupling, unification, and recent data
• Some Phenomenological Implications of String Loop Effects
• Supersymmetric Models with a Gauge Singlet and Non-Universal Soft Terms from Orbifold String Theory
• Reconciling Supersymmetric Grand Unification with ${\alpha }_s(m_Z)\approx 0.11$
• Low Energy Thresholds and the Renormalization Group in the MSSM

Cited by in corpus (26)

• Precise determination of the neutral Higgs boson masses in the MSSM
• The R-Parity Violating Minimal Supergravity Model
• Two-loop corrections to Radiative Electroweak Symmetry Breaking in the MSSM
• On the treatment of threshold effects in SUSY spectrum computations
• 2-Loop Supersymmetric Renormalisation Group Equations Including R-Parity Violation and Aspects of Unification
• Cosmological consequences of Yukawa-unified SUSY with mixed axion/axino cold and warm dark matter
• Resurrecting No-Scale Supergravity Phenomenology
• Frequentist Analysis of the Parameter Space of Minimal Supergravity
• Effects of CP-violating phases on Higgs boson production at hadron colliders in the Minimal Supersymmetric Standard Model
• Mass Spectrum in R-Parity Violating mSUGRA and Benchmark Points
• Implications of the Higgs Boson Searches on Different Soft SUSY-breaking Scenarios
• Yukawa Unification as a Window into the Soft Supersymmetry Breaking Lagrangian
• On a radiative origin of the Standard Model from Trinification
• The lightest Higgs Boson of mSUGRA, mGMSB and mAMSB at Present and Future Colliders: Observability and Precision Analyses
• Threshold effects and radiative electroweak symmetry breaking in $SU(5)$ extensions of the MSSM
• Threshold and Flavour Effects in the Renormalization Group Equations of the MSSM I: Dimensionless Couplings
• Low Energy Thresholds and the Renormalization Group in the MSSM
• Pseudoscalar Higgs production in association with stop and sbottom pairs at the LHC in the MSSM
• D-term Spectroscopy in Realistic Heterotic-String Models
• Radiative GUT Symmetry Breaking in a R-Symmetric Flipped SU(5) Model
• b-tau Unification and neutrino masses in SU(5) extensions of the MSSM with radiative electroweak symmetry breaking
• Low Fine-Tuning with Heavy Higgsinos in Yukawa Unified SUSY GUTs
• Distinguishing gauge-mediated from unified-supergravity spectra
• Threshold corrections to the radiative breaking of electroweak symmetry and neutralino dark matter in supersymmetric seesaw model
• Theta angle versus CP violation in the leptonic sector
• On Nonstandard Vacuua in Minimal Supergravity Models