Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-11-07
Phys.Rev.Lett.98:092003,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
a reference updated in the published version
Scientific paper
10.1103/PhysRevLett.98.092003
The inclusive $J/\psi$ production in $e^+ e^- \to J/\psi c\bar c$ at B factories is one of the most challenging open problems in heavy quarkonium physics. The observed cross section of this double charm production process is larger than existing leading order (LO) QCD predictions by a factor of 5. In the nonrelativistic QCD (NRQCD) factorization formalism, we calculate the next-to-leading order (NLO) QCD virtual and real corrections to this process, and find that these corrections can substantially enhance the cross section with a $K$ factor of about 1.8. We further take into account the feeddown contributions from higher charmonium states (mainly the $\psi(2S)$ as well as $\chi_{cJ}$) and the two-photon contributions, and find that the discrepancy between theory and experiment can be largely removed.
Chao Kuang-Ta
Zhang Yu-Jie
No associations
LandOfFree
Double charm production e^+ e^- \to J/ψ+ c \bar{c} at B factories with next-to-leading order QCD corrections 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 Double charm production e^+ e^- \to J/ψ+ c \bar{c} at B factories with next-to-leading order QCD corrections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double charm production e^+ e^- \to J/ψ+ c \bar{c} at B factories with next-to-leading order QCD corrections will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-618159