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Observation of the h(c)(1P) Using e+ e- collisions above the DD threshold.

Abstract:

Using 586  pb(-1) of e+ e- collision data at E(c.m.) = 4170  MeV, produced at the Cornell Electron Storage Ring collider and collected with the CLEO-c detector, we observe the process e+ e- → π+ π- h(c)(1P). We measure its cross section to be 15.6±2.3±1.9±3.0  pb, where the third error is due to the external uncertainty on the branching fraction of ψ(2S) → π0 h(c)(1P), which we use for normalization. We also find evidence for e+ e- → ηh(c)(1P) at 4170 MeV at the 3σ level and see hints of a ri...

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Publication status:
Published

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Journal:
Physical review letters
Volume:
107
Issue:
4
Pages:
041803
Publication date:
2011-07-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:84645fc6-e7bd-4de0-bd7b-382bc2e678e0
Source identifiers:
172521
Local pid:
pubs:172521
Language:
English
Keywords:

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