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STUDY OF ETA-C PRODUCTION IN 2-PHOTON COLLISIONS

Abstract:

Production of the ηc meson in e+e- quasireal two photon collisions has been looked for in three channels. The data were obtained from an integrated luminosity of 189 pb-1. An ηc signal is observed in two decay modes (Ks0K±π∓,π+π-π+π-) with a combined statistical significance of 3.5 standard deviations. Using the known ηc branching ratios to these channels and to K+K-π+π- the combined partial ηc width to γγ is Γγγ(ηc). The first error is statistical, and the second one includes the systematic ...

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Publication status:
Published

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Publisher copy:
10.1007/BF01564698

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Publisher:
Springer-Verlag
Journal:
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS
Volume:
41
Issue:
4
Pages:
533-538
Publication date:
1989-01-01
DOI:
EISSN:
1434-6052
ISSN:
0170-9739
Source identifiers:
25571
Language:
English
Pubs id:
pubs:25571
UUID:
uuid:8884042b-a59f-41ad-bfa9-ca669a482299
Local pid:
pubs:25571
Deposit date:
2012-12-19

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