We present a new approach to optical interconnections, based on microelectromechanical system tip/tilt mirror technology and the White cell. This is a free-space approach in which many beams circulate simultaneously in the device, each beam forming a unique spot pattern on the micromirror array. On each bounce, each beam can be switched to any of several White cells, each of which has a differe...

We investigate the possibility that the process of ρ 0-meson photoproduc-tion on proton, γ + p → p + ρ 0 , in the near threshold region E γ < 2 GeV, can be considered in the framework of model with π-, σ-and N-exchanges. This suggestion is based on a study of the t-dependence of differential cross section, dσ(γp → pρ 0)/dt, which has been measured by SAPHIR Collaboration. We find that the sugge...

The cross-coupling reaction between phenylboronic acid and various types of aryl halides (Suzuki reaction) was carried out using a catalytic amount of a new palladium catalyst (1-benzyl-3-(1-benzyl-1-methylpyrrolidin-1-ium-2-yl) pyridin-1-ium palladium chloride [DBNT][PdCl4]) in poly (ethylene glycol) (PEG-200) in the presence of KOH as the base. This new catalyst was synthesized and...

I report on a numerical program, which can be used to calculate any infra-red safe twojet observable in electron-positron annihilation to next-to-next-to-leading order in the strong coupling constant αs. The calculation is based on the subtraction method. The result for the two-jet cross section is compared to the literature.

We discuss the strength of the trilinear Higgs boson coupling in technicolor (or composite) models in a model independent way. The coupling is determined as a function of a very general ansatz for the technicolor self-energy, and turns out to be equal or smaller than the one of the standard model Higgs boson depending on the dynamics of the theory. With this trilinear coupling we estimate the c...

We investigate the coupling efficiency of a localized magnetic moment placed at a distance z from a DC-SQUID magnetometer of loop radius a with nanobridges of cross section r . Using simple magnetostatic considerations, we show that there exist two detection regimes: the usual far-field regime (z a) for which inductive coupling is achieved by the entire loop and a near-field regime (z ≪ a) wher...

We present a new method of resummation of QCD threshold distributions to the hard scattering function of the dilepton production cross section in hadron-hadron collisions. Our formulation by-passes the infrared singularities of the QCD running coupling through a principal value prescription, and does not require an explicit infrared cut-off. The resulting large corrections exponentiate, and we ...

In topcolor assisted technicolor, topgluons are massive gluons which couple mainly to top and bottom quarks. We estimate the mass reach for topgluons decaying to tt̄ at the Tevatron as a function of integrated luminosity. The mass reach for topgluons decreases with increasing topgluon width, and is 1.0− 1.1 TeV for Run II (2 fb) and 1.3− 1.4 TeV for TeV33 (30 fb). I. TOPCOLOR AND TOPGLUONS Topco...

The Standard Model predicts the value of the Higgs self-coupling but it cannot be measured at LHC. This measurement requires a machine such as the proposed International Linear Collider. Here, the sensitivity to the Higgs self-coupling is evaluated using the ZHH to six jets channel for a Higgs mass of 120GeV/c. Full simulation has been carried out for an integrated luminosity of 500 fb. Several...

The classical cross section for low energy absorption of the RRscalar by a stack of noncommutative D3-branes in the large NS B-field limit is calculated. In the spirit of AdS/CFT correspondence, this cross section is related to two point function of a certain operator in noncommutative Yang-Mills theory. Compared at the same gauge coupling, the result agrees with that of obtained from ordinary ...