Hamburg 2016 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 27: BSM Suchen III (Vektorartige Quarks)

T 27.9: Vortrag

Montag, 29. Februar 2016, 18:45–19:00, VMP6 HS B

Search for exotic light-flavor quark partners in pp collisions at a center of mass energy of 8 TeV with the CMS detector — •Gerrit Van Onsem — Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg

Vector-like quarks appear in many new-physics models extending the standard model. We search for vector-like quarks coupling to first-generation quarks using 8 TeV pp collision data collected by the CMS detector at the CERN Large Hadron Collider. The exotic quarks are assumed to be produced both singly and in pairs, and to decay via a W, Z or Higgs boson. We have defined various sets of selections on the reconstructed physics objects, subdividing the data set in different event categories, considering final states with at least one muon or electron. No significant excess over standard model expectations has been found, and exclusion limits on the mass of the exotic quarks are set.