New narrow resonance in the e+ e− → ϕη data by the Belle collaboration
- NázevTitle
- New narrow resonance in the e+ e− → ϕη data by the Belle collaborationNew narrow resonance in the e+ e− → ϕη data by the Belle collaboration
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- P. Lichard
- Klíčová slovaKeywords
- resonance
- DOIDOI
- 10.1103/PhysRevD.108.092005
- Časopis / citaceJournal / citation
- Physical Review D 108(9), 092005 (2023) · ISSN 2470-0010
- RokYear
- 2023
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- CitovánoCited by
- 2 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- http://link.aps.org/pdf/10.1103/PhysRevD.108.092005
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
Fitting the recent e+ e− → ϕη data by the Belle Collaboration with a theoretical formula reveals, besides the dominant ϕ(1680) resonance, two narrow resonances: expected ϕ(2170) resonance and an unexpected resonance with the mass of about 1851 MeV. Close proximity to the X(1835) resonance suggests that the new resonance may be interpreted as the pp̄ baryonium in an excited state. Follow-up analysis found the same resonance also in e+ e− → ωη data by the CMD-3 experiment.
Fitting the recent e+ e− → ϕη data by the Belle Collaboration with a theoretical formula reveals, besides the dominant ϕ(1680) resonance, two narrow resonances: expected ϕ(2170) resonance and an unexpected resonance with the mass of about 1851 MeV. Close proximity to the X(1835) resonance suggests that the new resonance may be interpreted as the pp̄ baryonium in an excited state. Follow-up analysis found the same resonance also in e+ e− → ωη data by the CMD-3 experiment.