We calculate one-loop corrections to the e ective Lagrangian for the D3 brane. We perform the gaugexing of the -symmetric Born-Infeld D3 brane action in the at background using Killing gauge. The linearized supersymmetry of the gaugexed action coincides with that of the N = 4 Yang-Mills theory. We use the helicity amplitude and unitarity technique to calculate the one-loop amplitudes at order ....

In this letter the boundary problem for massless and massive Rarita-Schwinger field in the AdS/CFT correspondence is considered. The considerations are along the lines of a paper by Henneaux [24] and are based on the requirement the solutions to be a stationary point for the action functional. It is shown that this requirement, along with a definite asymptotic behavior of the solutions, fixes t...

Taylor series expansions of turbulent time correlation functions are applied to show that helicity influences Eulerian time correlations more strongly than Lagrangian time correlations: to second order in time, the hclicity effect on Lagrangian time correlations vanishes, but the helicity cffect on Eulerian time correlations is nonzero. Fourier analysis shows that the hclicity effect on Euleria...

The experimental &?la on vector meson photoproduction and Compton scattering is analyzed by utilizing the dual absorptive model. The s-channel helicity conserving (SIIC) PO~UXOII exchange amplitude in p” and + photo:>ro&uction is found to shrink with s, in the same way as in Fand K-~-nucleon elastic scattering. The small SEX!-violatjng amplitudzs’are al.so studied. The ratio of amplitudes for 1...

Lagrangian of a massive particle with spin 3 2 is considered in the Rarita-Schwinger formalism. We discuss implications of the contactand the gauge-transformation on the physical content of free and interacting theories. It is shown that the “contact-invariance” is trivial and has no physical relevance. The requirement of the gauge-invariance of the free lagrangian fixes the off-shell lower-spi...

We present the matrix element of γγ → 4l process with four charge particles in final state. The constructions are performed in frame of Standard Model of electroweak interaction using the helicity amplitude method. Every possible polarization state of initial and final particles are considered and analyzed.

We report on our calculation of the order α4 s axial singlet contributions for the decay rates of the Z-boson as well as the vector singlet contribution to the cross section for electron-positron annihilation into hadrons. Together with recently finished O(α4 s ) calculations of the non-signlet corrections [1, 2], the new results directly lead us to the first complete O(α4 s ) predictions for t...

Anti-de Sitter supergravity models are considered in three dimensions. Precise asymptotic conditions involving a chiral projection are given on the Rarita-Schwinger fields. Together with the known boundary conditions on the bosonic fields, these ensure that the asymptotic symmetry algebra is the superconformal algebra. The classical central charge is computed and found to be equal to the one of...

Following our recent paper on the calculations of diffractive quark jet production at hadron colliders, we present here the calculations of gluon jet production at hadron colliders in the two-gluon exchange parameterization of the Pomeron model. We use the helicity amplitude method to calculate the cross section formula. We find that for the gluon jet production the diffractive process is relat...

Using the methods developed by Fewster and colleagues, we derive a quantum inequality for the free massive spin2 Rarita-Schwinger fields in the four dimensional Minkowski spacetime. Our quantum inequality bound for the RaritaSchwinger fields is weaker, by a factor of 2, than that for the spin2 Dirac fields. This fact along with other quantum inequalities obtained by various other authors for th...