Exploring the flavour structure of the high-scale MSSM
Gino Isidori1, Sokratis Trifinopoulos1
1Physik-Institut, Universität Zürich, 8057 Zurich, Switzerland.
The European Physical Journal. C, Particles and Fields
|April 10, 2020
Summary
We analyzed how heavy superpartners in the Minimal Supersymmetric Standard Model (MSSM) affect quark flavor-changing processes. Six key observables can distinguish between different MSSM frameworks, even with future collider upgrades.
Area of Science:
- High Energy Physics
- Supersymmetry
- Particle Physics
Background:
- The Minimal Supersymmetric Standard Model (MSSM) introduces superpartners that can influence quark flavor-changing observables.
- Understanding the soft-breaking terms in the MSSM is crucial for theoretical predictions and experimental searches.
- Approximate flavor symmetries offer motivated frameworks for characterizing these soft-breaking terms.
Purpose of the Study:
- To analyze the sensitivity of quark flavor-changing observables to the MSSM in a regime of heavy superpartners.
- To investigate four distinct and motivated frameworks for the structure of soft-breaking terms.
- To identify observables that can effectively probe these frameworks.
Main Methods:
- Analysis of quark flavor-changing observables.
- Consideration of four distinct MSSM frameworks based on approximate flavor symmetries.
- Evaluation of observable sensitivity for superpartner masses up to 10 TeV.
Main Results:
- A set of six low-energy observables, including B -> Xs gamma, B -> Xs l+l-, D0-D0bar mixing, and the phase of D0-D0bar mixing, show high sensitivity.
- These observables can effectively characterize the different MSSM frameworks for superpartner masses up to 10 TeV.
- The identified observables remain relevant even considering the mass reach of future high-energy colliders.
Conclusions:
- The analyzed low-energy observables are powerful tools for distinguishing between different MSSM scenarios with heavy superpartners.
- These observables offer a promising avenue for probing new physics beyond the Standard Model.
- Future experimental improvements in measuring these observables will be critical for constraining supersymmetric models.
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