Speaker
Description
The Chiral Belle upgrade aims to introduce polarized electron beams to the SuperKEKB e+e− collider to enable a vast set of unique precision measurements using the Belle II detector. This includes the ability for Belle II to perform multiple high precision measurements of $\sin^2 \theta_W$ with left-right asymmetry measurements of pairs of electrons, muons, taus, charm and b-quarks produced via e+e- annihilation. Additionally, unparalleled precision measurements of neutral current universality ratios, and tau lepton properties, including the tau g-2, will be possible. The primary accelerator components required for this upgrade include a new polarized electron source, a compact spin rotator to rotate the electron spin from transverse to longitudinal at the interaction point, and a high precision electron beam Compton polarimetry system. This talk will discuss the unique physics measurements enabled by Chiral Belle and present the status of the ongoing R&D activities for realizing this upgrade.
| Keyword-1 | Belle II |
|---|---|
| Keyword-2 | ChiralBelle |
