Yayınlanmış 1 Ocak 2024
| Sürüm v1
Dergi makalesi
Açık
Measurement of <i>CP</i> asymmetries in <i>B</i><SUP>0</SUP> → <i>K</i><sub>S</sub><SUP>0</SUP><i>K</i><sub>S</sub><SUP>0</SUP><i>K</i><sub>S</sub><SUP>0</SUP> decays at Belle II
Açıklama
We report a measurement of decay-time-dependent charge-parity (CP) asymmetries in B-0 -> (KSKSKS0)-K-0-K-0 decays. We use 387 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle II detector at the SuperKEKB asymmetric-energy electron-positron collider. We reconstruct 220 signal events and extract the CP-violating parameters S and C from a fit to the distribution of the decay-time difference between the two B mesons. The resulting confidence region is consistent with previous measurements in B-0 -> (KSKSKS0)-K-0-K-0 and B-0 -> (c (c) over bar )K-0 decays and with predictions based on the standard model.
Dosyalar
bib-b353a65c-914b-4906-8871-01540b659fbf.txt
Dosyalar
(470 Bytes)
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md5:a3f7b741674591888b1911d9c5ab6b19
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470 Bytes | Ön İzleme İndir |