arXiv subjects

M. Veltman

Publications and source records attributed to M. Veltman.

3 recordsLinked to original sources

arXiv1997

Two component theory and electron magnetic moment

The two-component formulation of quantum electrodynamics is studied. The relation with the usual Dirac formulation is exhibited, and the Feynman rules for the two-component form of the theory are presented in terms of familiar objects. The transformation from the Dirac theory to the two-component theory is quite amusing, involving Faddeev-Popov ghost loops of a fermion type with bose statistics. The introduction of an anomalous magnetic moment in the two-component formalism is simple; it is not equivalent to a Pauli term in the Dirac formulation. Such an anomalous magnetic moment appears not to destroy the renormalizability of the theory but violates unitarity.

hep-th↗

arXiv1994

Perturbation Theory and Relative Space

The validity of non-perturbative methods is questioned. The concept of relative space is introduced.

hep-ph↗

arXiv1993

Schoonschip '91

The symbolic manipulation program Schoonschip is being made freely available for a number of computers with Motorola 680x0 cpu's. It can run on machines with relatively modest memory and disk resources, and is designed to run as fast as possible given the host constraints. Memory and disk utilization can be adapted to tune performance. Recently added capabilities include a system for efficient generation of diagrams, gamma algebra for continuous dimensions, algorithmic improvements for handling large problems, and an increase in the allowed number of {\tt X} expressions.

hep-ph↗