Tests of CPT symmetry in B0−B¯0 mixing and in B0→cc¯K0 decays

Abstract : Using the eight time dependences for the decays Upsilon(4S)-> B0 B0bar -> fj fk with the dacay into a flavor-specific state fj = ell+- X before or after the decay into a CP eigenstate fk = c cbar KS,KL, as measured by the BABAR experiment, we determine the three CPT-sensitive parameters Re(z) and Im(z) in B0-B0bar mixing and |Abar/A| in B0 -> c cbar K0 decays. We find Im(z) = 0.010 +- 0.030 +- 0.013, Re(z) = -0.065 +- 0.028 +- 0.014, and |Abar/A| = 0.999 +- 0.023 +- 0.017, in agreement with CPT symmetry.
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Contributor : Claudine Bombar <>
Submitted on : Tuesday, May 17, 2016 - 10:39:45 AM
Last modification on : Thursday, January 11, 2018 - 6:14:22 AM

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J.-P. Lees, V. Poireau, V. Tisserand, N. Arnaud, M. Davier, et al.. Tests of CPT symmetry in B0−B¯0 mixing and in B0→cc¯K0 decays. Physical Review D, American Physical Society, 2016, 94, pp.011101. ⟨10.1103/PhysRevD.94.011101⟩. ⟨in2p3-01316473⟩

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