Radiative corrections to e + e − → WW → 4 fermions †

Electroweak radiative corrections to e + e − → WW → 4 fermions in double - pole approximation — the RacoonWW approach

RADIATIVE CORRECTIONS TO W - PAIR PRODUCTION IN e + e − ANNIHILATION STEFAN DITTMAIER

The status of precision calculations for the processes ee → WW → 4 fermions is reviewed, paying particular attention to questions of gauge invariance and recent progress concerning photonic radiative corrections. CERN-TH/98-336 November 1998 Contribution to the proceedings of IVth International Symposium on Radiative Corrections, RADCOR 98, 8–12 September 1998, Barcelona, Spain. RADIATIVE CORRE...

RacoonWW1.3: A Monte Carlo program for four-fermion production at e+e− colliders

We present the Monte Carlo generator RacoonWW that computes cross sections to all processes e+e− → 4f and e+e− → 4fγ and calculates the complete O(α) electroweak radiative corrections to e+e− → WW → 4f in the electroweak Standard Model in double-pole approximation. The calculation of the tree-level processes e+e− → 4f and e+e− → 4fγ is based on the full matrix elements for massless (polarized) ...

Further numerical results on non-factorizable corrections to e + e − → 4 fermions

Numerical results on non-factorizable corrections to ee → WW → 4 fermions with semi-leptonic and hadronic final states, as well as to ee → ZZ → 4 fermions, are presented. The corrections turn out to be small in comparison to the experimental uncertainty of LEP2, but they might compete with the expected accuracy at future ee-colliders.

Precision calculations for γγ → WW → 4 fermions ( + γ )

The O(α) electroweak radiative corrections to γγ → WW → 4f within the electroweak Standard Model are calculated in double-pole approximation (DPA). Virtual corrections are treated in DPA, and real-photonic corrections are based on complete lowest-order matrix elements for γγ → 4f +γ. The radiative corrections are implemented in a Monte Carlo generator called Cofferγγ 1 , which optionally includ...