We present the one-loop helicity amplitudes with five external gluons. The computation employs string-based methods, new techniques for performing tensor integrals, and improvements in the spinorâ€¦ (More)

We present a conjecture for the leading color part of the n-gluon one-loop amplitudes with maximal helicity violation. The conjecture emerges from the powerful requirement that the amplitudes haveâ€¦ (More)

We apply ideas motivated by string theory to improve the calculational efficiency of one-loop weak interaction processes with massive external gauge bosons. In certain cases " supersymmetry "â€¦ (More)

22 checkpoints or about losing long computations due to a system failure. In this paper we have presented a simple model for coordinating multi-transaction activities, using a minimum of concepts.â€¦ (More)

Foreword With the purpose of learning and accountability, the Economic Cooperation and Development Division at the State Secretariat for Economic Affairs (SECO) undertakes regular and systematicâ€¦ (More)