arXiv subjects

Ya-ping Xie

Publications and source records attributed to Ya-ping Xie.

4 recordsLinked to original sources

arXiv2016

Exclusive $J/ψ$ Production in Diffractive Process with AdS/QCD Holographic Wave Function in BLFQ

The AdS/QCD holographic wave function of basis light-front quantization (BLFQ) for vector meson $J/ψ$ is applied in this manuscript. The exclusive production of $J/ψ$ in diffractive process is computed in dipole model with AdS/QCD holographic wave function. We use IP-Sat and IIM model in the calculation of the differential cross section of the dipole scattering off the proton. The prediction of AdS/QCD holographic wave function in BLFQ gives a good agreement to the experimental data.

hep-ph↗

arXiv2016

The $ J/ψ$ production in PbPb ultraperipheral collisions at $\sqrt{s_{NN}}=2.76\mathrm{TeV}$

We calculate the coherent and incoherent production of $J/ψ$ in PbPb ultraperipheral collisions. The production of $J/ψ$ in ultraperipheral collsions is product of photon flux distributions and cross section of photon-nucleus scatterings. The distributions of photon flux is computed in light-cone perturbation theory and the cross section of photon-nucleus scatterings is calculated in dipole model, we assume that the two gluons exchange contribution is the coherent cross section and the large-$N_c$ contribution is the incoherent cross section in photon-nucleus scattering. The numerical result of the rapidity distributions of $J/ψ$ production in PbPb ultraperipheral collisions at $\sqrt{s_{NN}}=2.76$TeV are compared with the experimental data measured by the ALICE collaboration.

hep-ph↗

arXiv2016

The coherent cross section of vector mesons in ultraperipheral PbPb collisions at the LHC

The coherent cross section of $J/ψ$, $ρ$, $ϕ$ are computed in dipole model in the ultraperipheral PbPb collisions, the IP-Sat and IIM model are applied in the calculation of the differential cross section of the dipole scattering off the nucleon, three kinds of forward vector meson wave functions are used in the overlap. The prediction of $J/ψ$ and $ρ$ is compared with the experimental data of the ALICE Collaboration, and the prediction of $ϕ$ is also given in this paper.

hep-ph↗

arXiv2013

Sudakov Factor in the Deep Inelastic Scattering of a Current off a Large Nucleus

We consider a gedanken experiment of the scattering of a current off a large nucleus to study the gluon saturation at the small-x limit and compute the Sudakov factor of this process through a one-loop calculation. The differential cross section is expressed in term of the Sudakov resummation, in which the collinear and the rapidity divergences are subtracted. We also discuss how to probe the Weizsaecker-Williams (WW) gluon distribution in the process of photon pair production in the pA collisions.

hep-ph↗