Aug 23 – 28, 2010
Bonn
Europe/Berlin timezone

Search for neutral supersymmetric Higgs bosons in bbb(b) final states in ppbar collisions at sqrt(s)=1.96 TeV

Aug 23, 2010, 2:51 PM
15m
Kl. Hörsaal Mathematik (Bonn)

Kl. Hörsaal Mathematik

Bonn

Nussallee 12

Speaker

Dr Fabrice Couderc (CEA)

Description

We present a search for Higgs bosons in bh(-->bb) and bbh(-->bb) channels at a center-of-mass energy of 1.96 TeV using up to 6.3 fb-1 opf data collected with the D0 detector at the Fermilab Tevatron collider. In many supersymmetric models the cross-section for the production of neutral Higgs bosons in association with bottom quarks is greatly enhanced compared to the standard model and over much of the parameter space the dominant decayu process is h-->bbar. We search for an excess of events above the multijet background in events with 3 and 4 b-tagged jets. Understanding the multijet background in this channel is particularly challenging. The treatment of the background, the multivariate techniques used to improved the sensitivity and the limit setting procedure are discussed.

Primary author

Presentation materials