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http://hdl.handle.net/123456789/2384| Title: | Measurement of time-dependent CP violation in B0→K0Sπ0π0 decays |
| Authors: | Bhardwaj, V. |
| Keywords: | Particle Phenomena Particle mixing & oscillations Quark mixing |
| Issue Date: | 2019 |
| Publisher: | American Physical Society |
| Citation: | Physical Review D,99(1) |
| Abstract: | We report a measurement of time-dependent CP violation in B0→K0Sπ0π0 decays using a data sample of 772×106 B¯B pairs collected by the Belle experiment running at the Υ(4S) resonance at the KEKB e+e− collider. This decay proceeds mainly via a b→sd¯d “penguin” amplitude. The results are sin2ϕeff1=0.92+0.27−0.31 (stat.) ±0.11 (syst.) and A=0.28±0.21 (stat.) ±0.04 (syst.), which are the most precise measurements of CP violation in this decay mode to date. The value for the CP-violating parameter sin2ϕeff1 is consistent with that obtained using decay modes proceeding via a b→c¯cs “tree” amplitude. |
| Description: | Only IISERM authors are available in the record. |
| URI: | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.011102 http://hdl.handle.net/123456789/2384 |
| Appears in Collections: | Research Articles |
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