Precision Study of η′ → γπ⁺π⁻ Decay Dynamics
| dc.contributor.ORCID | 0000-0003-0867-2189 (Lou, X) | en_US |
| dc.contributor.author | Ablikim, M. | en_US |
| dc.contributor.author | Achasov, M. N. | en_US |
| dc.contributor.author | Ahmed, S. | en_US |
| dc.contributor.author | Ai, X. C. | en_US |
| dc.contributor.author | Albayrak, O. | en_US |
| dc.contributor.author | Albrecht, M. | en_US |
| dc.contributor.author | Lou, Xinchou | en_US |
| dc.contributor.author | BESIII Collaboration | en_US |
| dc.contributor.utdAuthor | Lou, Xinchou | en_US |
| dc.date.accessioned | 2018-11-05T21:02:07Z | |
| dc.date.available | 2018-11-05T21:02:07Z | |
| dc.date.created | 2018-06-14 | en_US |
| dc.date.issued | 2018-11-05 | |
| dc.description | Includes supplementary material | en_US |
| dc.description.abstract | Using a low background data sample of 9.7×10⁵ J/ψ→γη′, η′→γπ⁺π⁻ events, which are 2 orders of magnitude larger than those from the previous experiments, recorded with the BESIII detector at BEPCII, the decay dynamics of η′→γπ⁺π⁻ are studied with both model-dependent and model-independent approaches. The contributions of ω and the ρ(770)-ω interference are observed for the first time in the decays η′→γπ⁺π⁻ in both approaches. Additionally, a contribution from the box anomaly or the ρ(1450) resonance is required in the model-dependent approach, while the process specific part of the decay amplitude is determined in the model-independent approach. | en_US |
| dc.description.department | School of Natural Sciences and Mathematics | en_US |
| dc.identifier.bibliographicCitation | Ablikim, M., M. N. Achasov, S. Ahmed, X. C. Ai, et al. 2018. "Precision study of η′ →γπ⁺π⁻ decay dynamics." Physical Review Letters 120(24), 242003(1)-242003(8), doi:10.1103/PhysRevLett.120.242003 | en_US |
| dc.identifier.issn | 0031-9007 | en_US |
| dc.identifier.issue | 24 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10735.1/6260 | |
| dc.identifier.volume | 120 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevLett.120.242003 | |
| dc.rights | CC BY 4.0 (Attribution) | en_US |
| dc.rights | ©2017 The Authors. | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
| dc.source | Physical Review Letters | |
| dc.subject | Nuclear physics | en_US |
| dc.subject | Pions | en_US |
| dc.subject | J/ψ (J/psi) meson | en_US |
| dc.subject | Mass (Physics) | en_US |
| dc.subject | Radioactive decay | en_US |
| dc.subject | Photons | en_US |
| dc.title | Precision Study of η′ → γπ⁺π⁻ Decay Dynamics | en_US |
| dc.type.genre | article | en_US |