- Treffer 1 von 1
Radiative production and decays of the exotic η1′(1855) and its siblings
- We study the production of the light JPC=1−+ hybrid isoscalars η1′(1855) and the yet undiscovered η1(1660) as intermediate states in the radiative decays of the charmonium (J/ψ) to two conventional mesons using a flavor symmetric Lagrangian. For this purpose, we use the J/ψ→γη1′(1855)→γηη′ process as the reference. We find that some of the decay channels have branching ratios similar to or larger than that of the γηη′ channel and are sensitive to the mixing between the hybrid isoscalars. We propose that relatively stable γηf1(1285) channel be explored for the presence of the light hybrid isoscalar η1hyb(1660). We also exploit the strong decay channels containing at least one vector meson to study the radiative decays of the whole hybrid nonet {π1(1600),K1hyb(1750),η1hyb(1660),η1′(1855)}. We find that the hybrids cannot radiatively decay into the I=0 pseudoscalars. Furthermore, the vector decay channels ((ρ/ω/ϕ)γ) of the hybrid isoscalars are sensitive to the strangeness content of the hybrids. We also provide estimates for the branching fractions for the radiative production and partial widths for the radiative decays of the hybrids.
Verfasserangaben: | Vanamali ShastryORCiD, Francesco GiacosaORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-790059 |
DOI: | https://doi.org/10.1016/j.nuclphysa.2023.122683 |
ISSN: | 0375-9474 |
Titel des übergeordneten Werkes (Englisch): | Nuclear Physics A |
Verlag: | Elsevier |
Verlagsort: | Amsterdam |
Dokumentart: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Veröffentlichung (online): | 23.05.2023 |
Datum der Erstveröffentlichung: | 23.05.2023 |
Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Datum der Freischaltung: | 18.10.2023 |
Freies Schlagwort / Tag: | Charmonium decays; Hybrid mesons; Radiative decays |
Jahrgang: | 1037 |
Ausgabe / Heft: | 122683 |
Aufsatznummer: | 122683 |
Seitenzahl: | 18 |
HeBIS-PPN: | 517298104 |
Institute: | Physik |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Lizenz (Deutsch): | Creative Commons - CC BY - Namensnennung 4.0 International |