We extend our relativistic theory of electroweak properties composite systems to describe simultaneously the gravitational form factors hadrons. The approach is based on a version instant-form quantum mechanics and makes use modified impulse approximation. exploit general method invariant parametrizaton local operators write energy-momentum tensor particle with an arbitrary spin. obtained resul...

The governing role of light-cone dynamics in inclusive heavy hadron decay processes is demonstrated. Nonperturbative QCD effects on the processes can be systematically calculated using light-cone expansion and heavy quark effective theory. The applications of the light-cone approach to studying electroweak and strong interactions and hadron structure with semileptonic and radiative decays of be...

HERWIG is a general-purpose Monte Carlo event generator, which includes the simulation of hard lepton-lepton, lepton-hadron and hadron-hadron scattering and soft hadron-hadron collisions in one package. It uses the parton-shower approach for initialand nal-state QCD radiation, including colour coherence e ects and azimuthal correlations both within and between jets. This article updates the des...

The RHIC data on charm production are compared with the kT -factorization approach predictions, both standard NLO QCD and FONLL. The calculated results underestimate the STAR Collaboration data. The role of possible nuclear effects is discussed. PACS numbers: 25.75.Dw, 13.87.Ce, 24.85.+p The investigation of heavy quark production in high energy collisions is an important method for studing the...

We analyze the centrality dependence of thermal parameters describing hadron multiplicities, hadron spectra and dilepton spectra in heavy-ion collisions at SPS and RHIC energies.

We report the final results of the CP-PACS calculation for the quenched light hadron spectrum with the Wilson quark action. Our data support the presence of quenched chiral singularities, and this motivates us to use mass formulae based on quenched chiral perturbation theory in order to extrapolate hadron masses to the physical point. Hadron masses and decay constants in the continuum limit sho...

A study of the CMS hadron calorimeter is presented using simulated events with single particles and jets. The impact of the outer hadron calorimeter has been looked into from the point of view of linearity, energy resolution and leakage of energy. The study shows a net improvement in missing pT measurements at LHC energies due to the addition of the outer hadron calorimeter. 1) Tata Institute o...

Physics of spin-1 hadron is an unexplored topic in the high-energy region although spin-1/2 physics has been well investigated in the last decade. It is important to test our knowledge of hadron spin structure in a quite different field of spin physics. We discuss tensor structure functions, which do not exist for the spin-1/2 nucleon, in lepton scattering and in hadron reactions such as the po...

Diffractive parton distribution functions give the probability to find a parton in a hadron if the hadron is diffractively scattered. We provide an operator definition of these functions and discuss their relation to diffractive deeply inelastic scattering and to photoproduction of jets at HERA. We perform a calculation in the style of “constituent counting rules” for the behavior of these func...