Phenomenological description of the π−π+ S-waves in D+→π−π+π+ and D+s→π−π+π+ decays: The problem of phases Full article
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Physical Review D: Particles and fields
ISSN: 2470-0010 , E-ISSN: 2470-0029 |
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| Output data | Year: 2023, Volume: 107, Number: 5, Pages: 056009 Pages count : 8 DOI: 10.1103/physrevd.107.056009 | ||
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| Affiliations |
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Funding (1)
| 1 | Sobolev Institute of Mathematics | FWNF-2022-0021 |
Abstract:
We present a phenomenological description of the LHCb data for the magnitudes and phases of the π−π+ S-wave amplitudes in the D+→π−π+π+ and D+s→π−π+π+ decays. We operate within a simple model that takes into account the known pair interactions of particles in coupled channels. The seed complex amplitudes for various intermediate state production are assumed to be independent of the energy; their values are determined by fitting. This model gives a satisfactory description of virtually all features of the energy dependence of the experimentally measured S-wave amplitudes in the D+→π−π+π+ and D+s→π−π+π+ decays in the regions 2mπ<mπ−π+<1.39 GeV and 2mπ<mπ−π+<1.29 GeV, respectively.
Cite:
Achasov N. .
, Shestakov G. .
Phenomenological description of the π−π+ S-waves in D+→π−π+π+ and D+s→π−π+π+ decays: The problem of phases
Physical Review D: Particles and fields. 2023. V.107. N5. P.056009. DOI: 10.1103/physrevd.107.056009 WOS Scopus РИНЦ OpenAlex
Phenomenological description of the π−π+ S-waves in D+→π−π+π+ and D+s→π−π+π+ decays: The problem of phases
Physical Review D: Particles and fields. 2023. V.107. N5. P.056009. DOI: 10.1103/physrevd.107.056009 WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | Nov 10, 2022 |
| Accepted: | Feb 22, 2023 |
| Published print: | Mar 8, 2023 |
| Published online: | Mar 8, 2023 |
Identifiers:
| Web of science: | WOS:000989423000005 |
| Scopus: | 2-s2.0-85150931427 |
| Elibrary: | 61007592 |
| OpenAlex: | W4323544093 |