Manifestation of kaonium in the e+ e- -> K+ K- process
- NázevTitle
- Manifestation of kaonium in the e+ e- -> K+ K- processManifestation of kaonium in the e+ e- -> K+ K- process
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- P. Lichard
- Klíčová slovaKeywords
- kaonium, K0-onium
- DOIDOI
- 10.1103/PhysRevD.101.111501
- Časopis / citaceJournal / citation
- Physical Review D 101(11), 111501 (2020) · ISSN 1550-7998
- RokYear
- 2020
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- CitovánoCited by
- 5 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- http://link.aps.org/pdf/10.1103/PhysRevD.101.111501
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
We analyze the precise data obtained by the CMD-3 experiment on the e+ e− annihilation into two charged kaons in the vicinity of the φ peak. A perfect fit is obtained only if a pole on the real axis below the reaction threshold is assumed. This can be interpreted as proof of the existence of the 2p state of kaonium, acompound of K+ and K-. The BABAR Collaboration data on the same process supports this conclusion and, in addition, points to the strong interaction as a dominant source of the binding energy. The possibilityof discovering 2p kaonium in the e+ e− → π+ π− process is discussed. The 2p state of K0 -onium is indicated on the basis of the CMD-3 e+ e− → K0S K0L data.
We analyze the precise data obtained by the CMD-3 experiment on the e+ e− annihilation into two charged kaons in the vicinity of the φ peak. A perfect fit is obtained only if a pole on the real axis below the reaction threshold is assumed. This can be interpreted as proof of the existence of the 2p state of kaonium, acompound of K+ and K-. The BABAR Collaboration data on the same process supports this conclusion and, in addition, points to the strong interaction as a dominant source of the binding energy. The possibilityof discovering 2p kaonium in the e+ e− → π+ π− process is discussed. The 2p state of K0 -onium is indicated on the basis of the CMD-3 e+ e− → K0S K0L data.