Speaker
Mr
Yahor Dydyshka
(Joint Institute for Nuclear Research, Dubna)
Description
An algorithm for the spinor amplitudes with massive particles is implemented in the SANC computer system framework.
Procedure for simplification of the expressions with spinor products is based on little group technique in six-dimensional space-time.
Amplitudes for bremsstrahlung processes e+e+\to (e+e+/mu+mu-/HZ/Zgamma/gamma gamma) + gamma are obtained in gauge-covariant form analytically eliminating all gauge-fixing parameters. Numerical integration is performed by ReneSANCe Monte-Carlo event generator.
Author
Mr
Yahor Dydyshka
(Joint Institute for Nuclear Research, Dubna)
