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Area of Science:

  • High-energy particle physics
  • Beyond Standard Model physics
  • Flavor physics

Background:

  • The Standard Model (SM) is the current best description of fundamental particles and forces.
  • Extensions to the SM are motivated by phenomena like dark matter and neutrino masses.
  • Flavor physics offers a sensitive probe for new physics due to its sensitivity to high-mass scales.

Purpose of the Study:

  • To explore the potential of a future high-intensity electron-positron collider at the Z pole.
  • To investigate the probing power for extensions of the Standard Model through precise flavor-changing measurements.
  • To constrain new physics models using flavor and electroweak measurements.

Main Methods:

  • Utilizing effective field theories and simplified models inspired by B-physics data.
  • Focusing on flavor-physics measurement projections at the Future Circular Collider-electron-positron (FCC-ee).
  • Analyzing the interplay between flavor-physics and electroweak measurements.

Main Results:

  • Demonstrated the crucial role of combined flavor and electroweak measurements in constraining new physics.
  • Presented updated constraints on new physics parameters assuming no deviations from the Standard Model.
  • Illustrated the potential of FCC-ee for probing new physics scenarios.

Conclusions:

  • Future high-intensity e+e- colliders at the Z pole are powerful tools for New Physics searches.
  • Precise flavor-changing measurements are key to uncovering physics beyond the Standard Model.
  • The interplay of different measurements provides robust constraints on theoretical models.