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Updated: Jul 19, 2026
07:46
Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Has new physics already been seen in B(d) meson decays?
Rahul Sinha1, Basudha Misra, Wei-Shu Hou
1The Institute of Mathematical Sciences, Taramani, Chennai 600113, India.
Physical Review Letters
|October 10, 2006
Summary
The B(d){0}-B[over](d){0} mixing phase deviation is smaller than the polluting amplitude
Area of Science:
- Particle Physics
- High Energy Physics
- Standard Model Physics
Background:
- The B(d){0}-B[over](d){0} mixing phase is a key observable in particle physics.
- Understanding potential deviations is crucial for testing the Standard Model.
Purpose of the Study:
- To investigate model-independently the impact of amplitude pollution on the B(d){0}-B[over](d){0} mixing phase.
- To determine the constraints on new physics contributions.
Main Methods:
- Model-independent analysis of B(d){0}-B[over](d){0} mixing.
- Analysis of amplitude pollution effects.
Main Results:
- The deviation in the mixing phase is always less in magnitude than the weak phase of the polluting amplitude.
- Large deviations require fine-tuned cancellations, which are unlikely.
Conclusions:
- The observed B(d){0}-B[over](d){0} mixing phase is likely dominated by Standard Model contributions.
- Significant deviations, even if small, could imply new physics beyond the Standard Model.
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