Aug 23 – 28, 2010
Europe/Berlin timezone

Searches for physics beyond the standard model in final states with long lived particles.

Aug 23, 2010, 3:08 PM
Kl. Hörsaal Mathematik (Bonn)

Kl. Hörsaal Mathematik


Nussallee 12


Dr Sudeshna Banerjee (Tata Institute of Fundamental Research)


Using 5.4 fb-1 of data from ppbar collisions at sqrt(s)=1.96 TeV recorded with the D0 detector at the Fermilab Tevatron collider we investigate various models of new physics using final states with new long-lived particles. We investigate models in which charged massive long-lived particles are pair produced, as well as models in which a single heavy ionizing state is observed in the detector. Such state could arise as the bound state of pairs of new fermions bound by a new SU(N) "infracolor" gauge coupling (quirks). We also investigate models in which relatively light particles exist in a "potential valley" separated from the standard model by a high potential barrier. This barrier could be crossed leading to the production of hidden valley particles which could decay to standard model particles after moderately short lifetimes. Results from multiple searches for hidden valley particles will be presented.

Primary author

Dr Sudeshna Banerjee (Tata Institute of Fundamental Research)

Presentation materials