Journal article
Model-independent confirmation of the Z(4430)− state
- Abstract:
- The decay B0→ψ(2S)K+π- is analyzed using 3 fb-1 of pp collision data collected with the LHCb detector. A model-independent description of the ψ(2S)π mass spectrum is obtained, using as input the Kπ mass spectrum and angular distribution derived directly from data, without requiring a theoretical description of resonance shapes or their interference. The hypothesis that the ψ(2S)π mass spectrum can be described in terms of Kπ reflections alone is rejected with more than 8σ significance. This provides confirmation, in a model-independent way, of the need for an additional resonant component in the mass region of the Z(4430)- exotic state.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 746.5KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevD.92.112009
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 92
- Pages:
- 112009-1 - 112009-15
- Publication date:
- 2015-12-29
- DOI:
- ISSN:
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1550-7998, 1550-2368
- Keywords:
- Pubs id:
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pubs:569813
- UUID:
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uuid:a2ec3d66-125d-4356-863b-275580040177
- Local pid:
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pubs:569813
- Deposit date:
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2016-11-13
- ARK identifier:
Terms of use
- Copyright holder:
- CERN, for the LHCb Collaboration
- Copyright date:
- 2015
- Notes:
- This article is available under the terms of the Creative Commons Attribution 3.0 License (http://creativecommons.org/licenses/by/3.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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