We consider possible mechanisms for single spin asymmetries in inclusive Deep Inelastic Scattering (DIS) processes with unpolarized leptons and transversely polarized nucleons. Tests for the effects of non-zero intrinsic k⊥, for the properties of spin dependent quark fragmentations and for quark helicity conservation are suggested. Single spin asymmetries in large pT inclusive hadronic reaction...

I review new results on s-channel helicity nonconservation (SCHNC) in diffractive DIS. I discuss how by virtue of unitarity diffractive DIS gives rise to spin structure functions which were believed to vanish at x ≪ 1. These include tensor polarization of sea quarks in the deuteron, strong breaking of the Wandzura-Wilczek relation and demise of the Burkhardt-Cottingham sum rule. The invited tal...

The motto of high energy QCD is the quark helicity conservation which is often believed to entail the s-channel helicity conservation (SCHC) at small x. Here I review the recent work ([ 1, 2, 3, 4, 5], which shows this belief is groundless and there is an extremely rich helicity-flip physics at small x. The backbone of DIS is the Compton scattering (CS) γ μp → γ ∗ ′ ν p , which at small-x can b...

Theobroma cacao (cacao) is cultivated in tropical climates and is exposed to drought stress. The impact of the endophytic fungus Trichoderma hamatum isolate DIS 219b on cacao's response to drought was studied. Colonization by DIS 219b delayed drought-induced changes in stomatal conductance, net photosynthesis, and green fluorescence emissions. The altered expression of 19 expressed sequence tag...

BACKGROUND/OBJECTIVES Notifying partners of HIV-infected persons and referring them for testing and treatment is an effective method of disease control and identification of undiagnosed STD and/or HIV. To improve partner elicitation interviews, disease intervention specialists (DIS) were placed in 3 HIV clinics during 2008 and 2009. METHODS We reviewed the Arizona state STD surveillance datab...

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A review of theoretical models of di ractive structure functions in deep inelastic scattering (DIS) is presented with a view to highlighting distinctive features, that may be distinguished experimentally. In particular, predictions for the behaviour of the di ractive structure functions F 2 ; F D L ; F D(charm) 2 are presented. The measurement of these functions at both small and high values of...

Various QCD analyzes of the world unpolarized and polarized deep-inelastic data on charged lepton–nucleon and neutrino–nucleus scattering were performed in order to measure the QCD scale ΛQCD, resp. αs(M 2 Z), from the scaling violations of the nucleon structure functions. In this note we give a brief overview on the status of these analyzes. Most of the analyzes performed in the past were of n...

In this talk I report on some work done in collaboration with Jochen Bartels and Mark Wüsthoff on forward-jet inclusive production in DIS in the small-xbj limit. We work in the HERA lab frame and examine the jet production rate and the lepton-jet azimuthal-angle correlation at small values of xbj .

In the initial architecture for distributed simulation, developed under the SIMNET program, all simulation nodes receive all information broadcast by all the others, and each receiving node is responsible for sorting out what information is relevant to the entities it supports. With the advent of ARPA’s Synthetic Theater of War (STOW) program and the continued development of Distributed Interac...