Tentative estimates of B(X(3872) → π0π0χ c1) and B(X(3872) → π + π − χ c1) 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: 2024, Volume: 110, Number: 01, Article number : 016023, Pages count : 9 DOI: 10.1103/PhysRevD.110.016023 | ||
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| Affiliations |
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Funding (1)
| 1 | Sobolev Institute of Mathematics | FWNF-2022-0021 |
Abstract:
The rates of the Xð3872Þ → π0π0χc1 and Xð3872Þ → πþπ−χc1 decays are estimated in the model of the triangle loop diagrams with charmed DDD¯ and D¯ DD¯ mesons in the loops. There are the triangle logarithmic singularities in the physical region of the Xð3872Þ → π0π0χc1 decay which manifest themselves as narrow peaks in the π0χc1 mass spectrum near the D0D¯ 0 threshold. The model predicts approximately the same branching fractions of the Xð3872Þ → π0π0χc1 and Xð3872Þ → πþπ−χc1 decays at the level of about ð0.8–1.7Þ × 10−4. A distinct prediction of the model is the value of the ratio R ¼ BðXð3872Þ → πþπ−χc1Þ=BðXð3872Þ → π0π0χc1Þ ≈ 1.1. It weakly depends on the Xð3872Þ resonance parameters and indicates a significant violation of the isotopic symmetry according to which one would expect R ¼ 2.
Cite:
Achasov N.N.
, Shestakov G.N.
Tentative estimates of B(X(3872) → π0π0χ c1) and B(X(3872) → π + π − χ c1)
Physical Review D: Particles and fields. 2024. V.110. N01. 016023 :1-9. DOI: 10.1103/PhysRevD.110.016023 WOS Scopus РИНЦ OpenAlex
Tentative estimates of B(X(3872) → π0π0χ c1) and B(X(3872) → π + π − χ c1)
Physical Review D: Particles and fields. 2024. V.110. N01. 016023 :1-9. DOI: 10.1103/PhysRevD.110.016023 WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | May 15, 2024 |
| Accepted: | Jun 26, 2024 |
| Published print: | Jul 24, 2024 |
| Published online: | Jul 24, 2024 |
Identifiers:
| Web of science: | WOS:001277698700003 |
| Scopus: | 2-s2.0-85199570050 |
| Elibrary: | 73605966 |
| OpenAlex: | W4400949363 |