In this work the $k_{\perp}$-factorization formalism is applied to compute exclusive $Z^0$ boson photoproduction in $ep$ and $eA$ collisions. The study also extended $pp$ $AA$ processes. nuclear effects are investigated considering heavy light ions. Analytical models for unintegrated gluon distribution taken into account corresponding theoretical uncertainty quantified. analysis done electron-i...

We present an overview of recent results from the CP-PACS computer on the quenched light hadron spectrum and an ongoing two-flavour full QCD study. We find that our quenched hadron mass results are compatible with the mass formulae predicted by quenched chiral perturbation theory, which we adopt in our final analysis. Quenched hadron masses in the continuum limit show unambiguous and systematic...

We show that linearly polarized gluons inside unpolarized hadrons can be directly probed in jet or heavy quark pair production in electron-hadron collisions. We discuss the simplest cos2ϕ asymmetries and estimate their maximal value, concluding that measurements of the unknown linearly polarized gluon distribution in the proton should be feasible in future Electron-Ion Collider or Large Hadron ...