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http://hdl.handle.net/123456789/1913| Title: | Observation of Υ(4S)→η′Υ(1S |
| Authors: | Bhardwaj, V. |
| Keywords: | Physics Asymmetric energy Belle detectors E+e- collider Atomic physics Υ(4S)→η′Υ(1S) |
| Issue Date: | 2018 |
| Publisher: | American Physical Society |
| Citation: | Physical Review Letters, 121(6). |
| Abstract: | We report the first observation of the hadronic transition Υ(4S)→η′Υ(1S), using 496 fb−1 data collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We reconstruct the η′ meson through its decays to ρ0γ and to π+π−η, with η→γγ. We measure B(Υ(4S)→η′Υ(1S))=[3.43±0.88(stat)±0.21(syst)]×10−5, with a significance of 5.7σ. |
| Description: | Only IISERM authors are available in the record. |
| URI: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.062001 http://hdl.handle.net/123456789/1913 |
| Appears in Collections: | Research Articles |
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