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Coherent photoproductions of $J/Psi$ and $Upsilon$ mesons in pp and ultraperipheral PbPb collisions from dynamical gluon distribution | | Qiang Fu
; Xurong Chen
; | | Date: |
6 Dec 2016 | | Abstract: | We present the calculations of coherent photoproductions of vector mesons
($J/Psi$ and $Upsilon$) within the
$alpha_{s}
m{ln}frac{Q^2}{Lambda_{QCD}^2}$ approximation of QCD. The input
gluon distribution of proton is the dynamical parton model from DGLAP equations
with ZRS modification. From the comparison between several other gluon
distribution models, we found that the dynamical gluon distribution fits with
the mesons’ photoproduction experimental resluts. The calculation of the
differential cross sections using dynamical and other gluon distributions are
compared with the experimental data from LHCb experiments. Although the
rapidity distribution of vector mesons photoproduction data is a little bit
lacking near zero rapidity, the dynamical gluon distribution works well with
the data at large rapidity region. | | Source: | arXiv, 1612.1679 | | Services: | Forum | Review | PDF | Favorites | |
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