Is the BELLE result for the cross section e+e- -> J/psi+eta_c a real difficulty for QCD ?

Details Is the BELLE result for the cross section e+e- -> J/psi+eta_c a real difficulty for QCD ? Is the BELLE result for the cross section e+e- -> J/psi+eta_c a real difficulty for QCD ?

2004-12-22

arxiv.org/abs/hep-ph/0412335v2

Phys.Lett. B612 (2005) 215-222

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 2 figures, LaTeX, v2: the text is significantly improved, the erroneous fig.2 is replaced, results changed only slig

Scientific paper

10.1016/j.physletb.2005.03.021

It is shown that difficulties in reconciling the values of the cross section e+e- -> J/psi+eta_c measured at BELLE and calculated within non-relativistic QCD (NRQCD) are caused not by some misinterpretation of the data or other exotic explanations, but by poor applicability of NRQCD to such processes. We use general theory of hard exclusive processes in QCD together with more realistic models of charmonium wave functions, and show that the BELLE result can be naturally explained.

Affiliated with

Also associated with

No associations

Rating

Is the BELLE result for the cross section e+e- -> J/psi+eta_c a real difficulty for QCD ? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Is the BELLE result for the cross section e+e- -> J/psi+eta_c a real difficulty for QCD ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is the BELLE result for the cross section e+e- -> J/psi+eta_c a real difficulty for QCD ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-543239