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arXiv · 2404.00298

Production and decay of hyperons in a transversely polarized electron-positron collider

Xu Cao·Yu-Tie Liang·Rong-Gang Ping
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Abstract

The self-polarization of relativistic electrons or positrons moving in a magnetic field at a storage ring occurs through the emission of spin-flip synchrotron radiation, known as the Sokolov-Ternov effect. The resulting transverse polarizations of the colliding electrons and positrons, away from the depolarization resonances, allow for precise investigation of the spin entangled hyperon-antihyperon pairs via virtual photon or charmonium decay. The feasibility study reveals a promising increase in the statistical sensitivity of the \CP violation signal after considering the transverse polarizations of the lepton beams.

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Xu Cao, Yu-Tie Liang, Rong-Gang Ping. 2024-03-30. Production and decay of hyperons in a transversely polarized electron-positron collider. https://doi.org/10.1103/physrevd.110.014035

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