Measurement of the time-integrated CP asymmetry in D0KS0KS0 decays using Belle and Belle II data

Collaborations
Oct 31, 2024
10 pages
Published in:
  • Phys.Rev.D 111 (2025) 1, 012015
  • Published: Jan 1, 2025
e-Print:
DOI:
Report number:
  • KEK Preprint 2024-26,
  • Belle II Preprint 2024-026

Citations per year

0 Citations
Abstract: (APS)
We measure the time-integrated CP asymmetry in D0KS0KS0 decays reconstructed in e+e-cc¯ events collected by the Belle and Belle II experiments. The corresponding data samples have integrated luminosities of 980 and 428fb-1, respectively. The D0 decays are required to originate from the D*+D0π+ decay, which determines the charm flavor at production time. A control sample of D0K+K- decays is used to correct for production and detection asymmetries. The result, (-1.4±1.3(stat)±0.1(syst))%, is consistent with previous determinations and with CP symmetry.
Note:
  • 10 pages, 3 figures. arXiv admin note: text overlap with arXiv:2410.22961
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