Radiative corrections for lep2 physics

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Project objective

Our proposal consists of calculating and analysing the radiative corrections to processes relevant for LEP2 physics, and especially W pair production. We propose to parametrize these corrections in a manifestly gauge independent way in terms of the pinch technique (PT) self- energy, vertex, and box functions and subsequently tabulate them for use in automated codes. Specifically the objective is to: - Avoid numerically, large gauge cancellations. - Examine the size of individual contributions of different classes of one-loop graphs to the total cross-section - Extract important physical quantities, such as running couplings and form factors from the LEP data. - Define the improved Born approximation for complicated processes involving three or more particles in the final state and obtain higher-order estimates for them. - Construct automated codes for the calculation of one-loop cross-sections. - Investigate the off-shell W pair production at the one-loop level.

Original text from CORDIS.

Participants

• UNIVERSITY OF DURHAM · DURHAMCoordinatorUnited Kingdom
• Not availableCity levelGreece

Links

• View on CORDIS