In this study, the radar cross-section (RCS) of a large structure is analyzed using linear bounding volume hierarchy (LBVH), which representative acceleration algorithm ray-tracing technique. A technique, high-frequency method, used to analyze electromagnetic properties structures, and (BVH), binary tree structure, applied reduce intersection search time. The improvement in calculation speed qu...

We derive a new factorization formula in perturbative quantum chromodynamics for the Drell-Yan massive lepton-pair cross section as a function of the transverse momentum QT of the pair. When QT is much larger than the pair’s invariant mass Q, this factorization formula systematically resums the logarithmic contributions of the type αs ln (QT /Q 2) to all orders in the strong coupling αs. When Q...

Black hole production at the Large Hadron Collider (LHC) was first discussed in 1999. Since then, much work has been performed in predicting the black hole cross section. In light of the start up of the LHC, it is now timely to review the state of these calculations. We review the uncertainties in estimating the black hole cross section in higher dimensions. One would like to make this estimate...