Measurement of time-dependent CP violation in B0→K0Sπ0π0 decays
| dc.contributor.author | Bhardwaj, V. | |
| dc.date.accessioned | 2020-11-28T09:18:14Z | |
| dc.date.available | 2020-11-28T09:18:14Z | |
| dc.date.issued | 2019 | |
| dc.description | Only IISERM authors are available in the record. | |
| dc.description.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. | en_US |
| dc.identifier.citation | Physical Review D,99(1) | en_US |
| dc.identifier.other | https://doi.org/10.1103/PhysRevD.99.011102 | |
| dc.identifier.uri | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.011102 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/2384 | |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.subject | Particle Phenomena | en_US |
| dc.subject | Particle mixing & oscillations | en_US |
| dc.subject | Quark mixing | en_US |
| dc.title | Measurement of time-dependent CP violation in B0→K0Sπ0π0 decays | en_US |
| dc.type | Article | en_US |