The Color Octet Effect from $e^+ e^-\to{J/ψ}+X+γ$ at B Factory

Details The Color Octet Effect from $e^+ e^-\to{J/ψ}+X+γ$ at B Factory The Color Octet Effect from $e^+ e^-\to{J/ψ}+X+γ$ at B Factory

2003-11-23

arxiv.org/abs/hep-ph/0311292v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures and 1 table

Scientific paper

We study the initial state radiation process $e^+ e^-\to{J/\psi}+X+\gamma$ for $J/\psi$ production at B factory, and find the cross section is 61% larger than it's Born one for color octet part and is about half as it's Born one for color singlet part. Furthermore, the color singlet and color octet signal are very clearly separated in it's $E_\gamma$ spectra due to kinematics difference. We suggest to measure this $E_\gamma$ spectra at B factory to determine the color octet effect.

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