Test of $C\!PT$ symmetry in cascade decays$^*$

D.-S. Du; Z.-T. Wei

doi:doi:10.1007/s100520000368

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2023 Impact factor 4.2

Particles and Fields

Eur. Phys. J. C 14, 479-485
DOI 10.1007/s100520000368

Test of $C\!PT$ symmetry in cascade decays^** Supported in part by National Natural Science Foundation of China

D.-S. Du^1,2 - Z.-T. Wei^1,2

¹ CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China
² Institute of High Energy Physics, P.O. Box 918(4), Beijing 100039, P.R. China

Received: 14 July 1999 / Revised version: 12 February 2000 /
Published online: 14 April 2000 - © Springer-Verlag 2000

Abstract
Cascade mixing provides an place for elegant study of B⁰- $\bar{B^0}$ mixing. We use this idea to study the $C\!PT$ violation caused by B⁰- $\bar{B^0}$ mixing. An approximation method is adopted to treat the two complex B⁰- $\bar{B^0}$ mixing parameters $\theta$ and $\phi$ . A procedure to extract the parameters $\theta$ and $\phi$ is suggested. The feasibility of exploring $C\!PT$ violation and determining $\theta$ and $\phi$ in the future B-factories and LHC-B is discussed.