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Manuscript Title: DIZET: electroweak one loop corrections for e+ + e- -> f+ + f- around the Z0 peak.
Authors: D.Yu. Bardin, M.S. Bilenky, T. Riemann, M. Sachwitz, H. Vogt, P.Ch. Christova
Program title: DIZET
Catalogue identifier: ABRL_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 59(1990)303
Programming language: Fortran.
Computer: IBM, IBM PC.
Operating system: VM/SP, MSDOS.
Word size: 32
Keywords: Particle physics, Elementary, Qed, E+e- annihilation, Electroweak theory, Z0 decay, One-loop corrections.
Classification: 11.4.

Nature of problem:
The shape of the Z0 peak in e+e- annihilation is influenced by radiative corrections, among them the weak one-loop insertions. These are calculated in the standard electroweak theory. Derived quantities may also be calculated, e.g. the forward-backward asymmetry, the left- right asymmetry, and the final state polarization.

Solution method:
The package includes electroweak one loop corrections calculated in the on mass shell renormalization scheme using the unitary gauge. The differential cross section is evaluated as a function of the longitudinal polarization of the beam particles, the helicity of the final fermions, the production angle, and the energy of the process.

Restrictions:
QED corrections connected with bremsstrahlung are considered as an independent part of the problem and are excluded from the package which is understood to become part of a larger program. Corrections higher than first order are not taken into account.

Running time:
 A 10 Mhz IBM PC/AT with a numerical coprocessor needs for               
 initialization:                                                 8 sec   
 one differential cross section value:                           1 sec