Journal article
The ηc(2980) formation in two-photon collisions at LEP energies
- Abstract:
- ηc(2980) production in γγ interactions has been detected via its decays into Ks0K±π ∓, K+K-K+K- and K +K-π+π- in the data taken with the DELPHI detector at LEP1 and LEP2 energies. The two-photon radiative width averaged over all observed decay channels is Γγγ = 13.9 ± 2.0 (stat.) ± 1.4(syst.) ± 2.7 (BR) keV. No direct decay channel ηc → π+π -π+π- has been observed. An upper limit Γγγ < 5.5 keV at 95% confidence level has been evaluated for this decay mode.
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Bibliographic Details
- Journal:
- European Physical Journal C
- Volume:
- 31
- Issue:
- 4
- Pages:
- 481-489
- Publication date:
- 2003-12-01
- DOI:
- ISSN:
-
1434-6044
- Source identifiers:
-
281841
Item Description
- Language:
- English
- Pubs id:
-
pubs:281841
- UUID:
-
uuid:3ac550ba-e576-4fc9-96ed-483008c8ad52
- Local pid:
- pubs:281841
- Deposit date:
- 2013-11-16
Terms of use
- Copyright date:
- 2003
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