Recent ψ(2S) and ηc Results from BES

Harris, F. A.

doi:10.1016/b978-0-444-51343-4.50179-4

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2003

2004

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Cited by 2 publications

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“…Since its discovery, a large amount of ψ(2S) data has been collected. The latest comes from BES [1]. This has led to detailed analysis of the interference pattern between the strong and the electromagnetic interactions in ψ(2S) decays [2].…”

Section: Introductionmentioning

confidence: 99%

The form factors of ωπ0 and π+π− at ψ(2S)

王平¹,

莫晓虎²,

苑长征³

et al. 2003

Physics Letters B

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Section: Introductionmentioning

confidence: 99%

The form factors of ωπ0 and π+π− at ψ(2S)

王平¹,

莫晓虎²,

苑长征³

et al. 2003

Physics Letters B

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“…So far, most of the mea-surements have large statistical and systematic uncertainties, so this problem has been outside the purview of concern. Now with large J/ψ and ψ(2S) samples from BES-II [22] and forthcoming high precision experiments CLEO-c [10] and BES-III [11], the effect of a c needs to be treated properly. To study it, the most promising way is to do energy scan for every exclusive mode in the vicinity of the resonance, so that both the amplitudes and the relative phases could be fit simultaneously.…”

Section: Summary and Perspectivementioning

confidence: 99%

The interference between virtual photon and 1−− charmonium in e+e− experiment

Wang

Yuan

et al. 2004

Physics Letters B

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e + e − experiments producing charmonium are reviewed. It is found that the contribution of the continuum amplitude via virtual photon was neglected in almost all the experiments and the channels analyzed. It is shown that the contribution of the continuum part may affect the final results significantly in ψ(2S) and ψ(3770) decays, while the interference between continuum and resonance amplitudes may even affect the J/ψ decays as well as the ψ(2S) and ψ(3770). This should be considered in analyzing the "ρπ puzzle" between J/ψ and ψ(2S) decays, and the difference between inclusive hadron and DD cross sections in ψ(3770) decays.

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Recent ψ(2S) and ηc Results from BES

Cited by 2 publications

References 11 publications

The form factors of ωπ0 and π+π− at ψ(2S)

The form factors of ωπ0 and π+π− at ψ(2S)

The interference between virtual photon and 1−− charmonium in e+e− experiment

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