ICHEP 2010 - 35th International Conference on High Energy Physics

Date de début :

23/07/2010 10:00

Date de fin :

23/07/2010 10:00

Lieu :

Palais des Congrès - Porte Maillot

Ville :

Paris (France)

Producteur :

L'Institut national de physique nucléaire et de physique des particules

Durée :

0:18:22

Type :

video/mp4

Format :

mp4

Résolution :

720x576

Electroweak non-resonant corrections

We analyse subleading electroweak effects in the top anti-top resonance production region in e+ e- collisions which arise due to the decay of the top and anti-top quarks into the W+ W- b bbar final state. These are NLO corrections adopting the non-relativistic power counting v ~ alpha_s ~ sqrt(alpha_EW). In contrast to the QCD corrections which have been calculated (almost) up to NNNLO, the parametrically larger NLO electroweak contributions have not been completely known so far, but are mandatory for the required accuracy at a future linear collider. The missing parts of these NLO contributions arise from off-shell top production and decay and other non-resonant irreducible background processes to t tbar production. We consider the total cross section of the e+ e- ? W+ W- b bbar process and additionally implement cuts on the invariant masses of the W+ b and W- bbar pairs.

Dr. RUIZ-FEMENIA, Pedro (RWTH Aachen University)

Dernières vidéos

Du même auteur