Amplitude analysis of the Ds+→ π−π+π+ decay
Authors:
- R. Aaij,
- P. Duda,
- M.M. Duras,
- L.F. Felkowski,
- S. Kubis
Abstract
A Dalitz plot analysis of the D+ s → π −π +π + decay is presented. The analysis is based on proton-proton collision data recorded by the LHCb experiment at a centreof-mass energy of 8 TeV and corresponding to an integrated luminosity of 1.5 fb−1 . The resonant structure of the decay is obtained using a quasi-model-independent partial-wave analysis, in which the π +π − S-wave amplitude is parameterised as a generic complex function determined by a fit to the data. The S-wave component is found to be dominant, followed by the contribution from spin-2 resonances and a small contribution from spin-1 resonances. The latter includes the first observation of the D+ s → ω(782)π + channel in the D+ s → π −π +π + decay. The resonant structures of the D+ s → π −π +π + and D+ → π −π +π + decays are compared, providing information about the mechanisms for the hadron formation in these decays.
- Record ID
- CUTf8f434f943b5465d99335ccb4c2ab9c0
- Publication categories
- ;
- Author
- Journal series
- Journal of High Energy Physics, ISSN 1029-8479, [1126-6708]
- Issue year
- 2023
- Vol
- 2023
- No
- 7
- Pages
- [1-35]
- Article number
- 204
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 25-27; Bibliografia (liczba pozycji) - 49; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 2023, Iss. 7
- Substantive notes
- The LHCb collaboration
- Keywords in English
- charm physics, Hadron-Hadron scattering, particle and resonance production
- ASJC Classification
- DOI
- DOI:10.1007/JHEP07(2023)204 Opening in a new tab
- URL
- https://link.springer.com/article/10.1007/JHEP07(2023)204 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTf8f434f943b5465d99335ccb4c2ab9c0/
- URN
urn:pkr-prod:CUTf8f434f943b5465d99335ccb4c2ab9c0
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