Search for a Low Mass Standard Model Higgs Boson at D0 in ppbar Collisions at s=1.96TeV\sqrt{s}=1.96 TeV

We present combined searches for the Low Mass Standard Model Higgs boson at a center-of-mass energy of $\sqrt{s}=$1.96 TeV, using up to 5 fb$^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron collider. The major contributing processes are associated production ($WH\to l\nu bb$, $ZH\to\nu\nu bb$, $ZH\to ll bb$). The significant improvements across the full mass range resulting from the larger data sets and improved analyses as well as future prospects are discussed

Experimental aspects of jet physics at LHC

Jet physics provides a powerful tool to investigate interaction properties of quarks and gluons. These studies have been possible at an energy never investigated before at LHC. In this proceedings we review the main characteristics of experimental methods to measure jets in proton-proton collisions at center-of-mass energies of 7 and 8 TeV. Novel methods are expected to play an important role for searching new physics at center-of-mass energy of 13 TeV.Comment: Proceedings of the Summer School and Workshop New Trends in High-Energy Physics and QC

Soft QCD at Tevatron

Experimental studies of soft Quantum Chromodynamics (QCD) at Tevatron are reported in this note. Results on inclusive inelastic interactions, underlying events, double parton interaction and exclusive diffractive production and their implications to the Large Hadron Collider (LHC) physics are discussed

Measurement of Z/γ\gamma+jet+X and γ\gamma+b/c+X Cross Sections with the D0 Detector

We present measurements of differential cross sections for the inclusive $Z/\gamma^*$ + jet production and the inclusive photon plus heavy flavor production in a data sample of 1fb$^{-1}$ collected with the D{\O}detector in proton-antiproton collisions at $\sqrt{s}$=1.96 TeV. In the first measurement, we compare kinematic distributions of the $Z/\gamma^*$ and the jets as well as various angles of the $Z$+jet system with different Monte Carlo event generators and next-to-leading order perturbative QCD (NLO pQCD) predictions with non-perturbative corrections applied. In the second measurement, we compare the results with NLO pQCD predictions, covering photon transverse momenta 30-150 GeV, photon rapidities $|y^{\gamma}| < 1.0$, jet rapidities $|y^{jet}| 15$ GeV

How to Protect Future Generations Using Tax Base Restrictions

This paper studies constitutional restrictions on the tax base that protect future generations from expropriation and improve the optimality of investment in Intergenerational Public Goods (IPGs). The choice of the tax base matters because it affects how intergenerational (IG) spillovers are capitalized into assets that are owned by current generations, and thus the IG politics. We show that with an income tax base, present generations expropriate future generations and produce inefficiently low levels of IPGs. By contrast, with a land tax base, IG expropriation using debt is impossible, the level of investment in IPGs is higher and, for some types of IPGs, Pareto optimal.