This book mainly investigates the precision predictions on the signal of new physics at the
Large Hadron Collider (LHC) in the perturbative Quantum Chromodynamics (QCD) scheme. The
potential of the LHC to discover the signal of dark matter associated production with a photon
is studied after including next-to-leading order QCD corrections. The factorization and
resummation of t-channel top quark transverse momentum distribution in the standard model at
both the Tevatron and the LHC with soft-collinear effective theory are presented. The potential
of the early LHC to discover the signal of monotops is discussed. These examples illustrate the
method of searching for new physics beyond what is known today with high precision.