Supersymmetry-breaking parameters from renormalization group invariants at the LHC

Journal Article · Tue Feb 01 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.035014· OSTI ID:21504916

Carena, Marcela ^[1]; Draper, Patrick ^[2]; Shah, Nausheen R ^[1]; Wagner, Carlos E. M. ^[2]

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1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States)
2. Enrico Fermi Institute, Chicago, Illinois 60637 (United States)

We study renormalization group invariant (RGI) quantities in the minimal supersymmetric standard model and show that they are a powerful and simple instrument for testing high-scale models of supersymmetry (SUSY) breaking. For illustration, we analyze the frameworks of minimal and general gauge-mediated (MGM and GGM) SUSY breaking, with additional arbitrary soft Higgs mass parameters at the messenger scale. We show that if a gaugino and two first generation sfermion soft masses are determined at the LHC, the RGIs lead to MGM sum rules that yield accurate predictions for the other gaugino and first generation soft masses. RGIs can also be used to reconstruct the fundamental MGM parameters (including the messenger scale), calculate the hypercharge D-term, and find relationships among the third generation and Higgs soft masses. We then study the extent to which measurements of the full first generation spectrum at the LHC may distinguish different SUSY-breaking scenarios. In the case of the MGM model, although most deviations violate the sum rules by more than estimated experimental errors, we find a one-parameter family of GGM models that satisfy the constraints and produce the same first generation spectrum. The GGM-MGM degeneracy is lifted by differences in the third generation masses and the messenger scales.

• OSTI ID: 21504916
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevD.83.035014; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
FORECASTING
HIGGS BOSONS
HIGGS MODEL
HYPERCHARGE
INVARIANCE PRINCIPLES
MASS
RENORMALIZATION
SCALE MODELS
SPECTRA
STANDARD MODEL
SUM RULES
SUPERSYMMETRY
SYMMETRY BREAKING
ACCELERATORS
BOSONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
GRAND UNIFIED THEORY
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
STORAGE RINGS
STRUCTURAL MODELS
SYMMETRY
SYNCHROTRONS
UNIFIED GAUGE MODELS