TH Thursday Seminar

Cross-sections for production of closed superstrings at high-energy colliders in the brane world model

by Roberto Iengo (SISSA, Trieste)

→ Europe/Zurich
TH Auditorium (CERN)

TH Auditorium

CERN

Description
In brane world string models with large extra dimensions, there are processes where two gluons or a quark anti-quark collide producing a light particle (e.g. gluon) carrying transverse momentum and a closed string that propagates in the extra dimensions. This process gives a missing momentum signa-ture. We compute the cross-section for this process within the context of type II superstring theory in the presence of a D-brane. This includes all missing energy sources up to s = 8 Ms2, that is the production of NS-NS, R-R closed string states including the first excited level, and it can be used to put limits on the string scale Ms, the cross-section pattern being typical of string theory.