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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
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Right-handed quark mixing in left-right symmetric theory.
Goran Senjanović1,2, Vladimir Tello1
1Gran Sasso Science Institute, Viale Crispi, L'Aquila 67100, Italy.
Physical Review Letters
|March 13, 2015
Summary
We derived exact formulas for the right-handed Cabibbo-Kobayashi-Maskawa (CKM) matrix in minimal left-right symmetric theory. This explains why right-handed mixing angles are surprisingly close to CKM ones, even with broken symmetry.
Area of Science:
- High Energy Physics
- Particle Physics
- Theoretical Physics
Background:
- The Cabibbo-Kobayashi-Maskawa (CKM) matrix describes quark mixing in the Standard Model.
- Left-right symmetric theories extend the Standard Model, incorporating right-handed gauge bosons.
- Understanding quark mixing in extended theories is crucial for physics beyond the Standard Model.
Purpose of the Study:
- To derive exact formulas for the right-handed analog of the CKM matrix.
- To provide a physical explanation for the observed proximity of right-handed mixing angles to CKM angles.
- To investigate the implications within the minimal left-right symmetric theory.
Main Methods:
- Derivation of exact formulas for the right-handed CKM matrix.
- Analysis of the minimal left-right symmetric theory with generalized parity.
- Application of results to specific physical phenomena.
Main Results:
- Exact formulas for the right-handed CKM matrix were obtained.
- A physical explanation for the closeness of right-handed mixing angles to CKM angles was provided.
- The theory was exemplified by analyzing right-handed charged gauge boson production and K(L)-K(S) mass difference.
Conclusions:
- The derived formulas offer new insights into quark mixing in left-right symmetric models.
- The study provides a theoretical basis for the observed similarities in mixing angles.
- The results have implications for understanding electroweak symmetry breaking and particle interactions.
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