Speaker
Torbjorn Sjostrand
(Lund University (SE))
Description
Back in 1990 an article by Victor Fadin. Valery Khoze and the speaker studied the effects of Coulomb enhancements and pseudo-bound below-threshold contributions ("toponium").
The relevant formulae have now been recoded and made available as an add-on to Pythia8, both for singlet and octet states.
Cross sections can be explored under varying assumptions. Complete events can be generated, but t-tbar spin correlations are lacking.
Author
Torbjorn Sjostrand
(Lund University (SE))