20.500.12556/DKUM-85053 Search for the decay ▫$B_s^0 \to \eta \eta$▫ We report results from a search for the decay B0s→ηη using 121.4  fb−1 of data collected at the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3×10−5 at 90% confidence level. This result represents a significant improvement over the previous most stringent limit. true false true Angleški jezik Slovenski jezik Znanstveno delo 2023-08-17 09:43:16 2023-08-17 09:43:16 2023-08-18 03:09:54 0000-00-00 00:00:00 2022 0 0 str. 012007-1-012007-7 no. 1 Vol. 105 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-01-01 539.1 101495299 10.1103/PhysRevD.105.012007 2470-0010 Search_for_the_decay_B-s(0)_-__eta-Bhuyan-2022.pdf Search_for_the_decay_B-s(0)_-__eta-Bhuyan-2022.pdf 1 B1B097F94AAC6FFAB59B8ECAF7D1F498 5b99c3cd2e7b4554f174b0279e33e311518a6fe15a4113b438ec29b6d885c03e 2d82faef-3cd3-11ee-af21-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=169635 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.012007 0 35a7fe6c-3cd3-11ee-af21-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=169636 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0