4-9 June 2012
Life Sciences Centre, UBC
Canada/Pacific timezone
<strong><font color="#cc0000">Abstract submission has closed</font></strong>

A search for new physics in events with Z bosons, jets, and missing transverse energy

4 Jun 2012, 16:00
West Atrium (Life Sciences Centre, UBC)

West Atrium

Life Sciences Centre, UBC

University of British Columbia Vancouver, BC Canada
Poster Standard Model & Beyond 1D: Poster Session and Coffee Break


Warren Andrews (Univ. of California San Diego (US))


We present a search for new physics in the final state of a leptonically decaying Z boson and missing transverse energy (MET) utilizing the full 2011 dataset collected by the CMS detector. Two complementary search regions are investigated. The first requires a leptonic Z and two or more jets, and searches in the high MET tail. The second applies additional requirements to increase sensitivity to electroweak production of new physics. These requirements include a veto on b tagged jets and a cut on the dijet invariant mass to select jets from a W or Z decay, both of which highly suppress Standard Model (SM) backgrounds. These searches are sensitive to a variety of new physics scenarios involving Z bosons, including electroweak production of particles which decay to Zs. Fake MET from SM Z+Jets background is modeled using a data driven MET templates technique, and ttbar background is predicted using opposite flavor dilepton events.

<strong>Funding Source</strong>

US Department of Energy

<strong>Collaboration Name</strong><br /><font color="#000099">Please enter the name of<br />the collaboration or group<br />using the acronym, as in:<br /><font color="#ff0000">ABC Collaboration</font>

CMS Collaboration

<strong>E-mail Address</strong> warren.andrews@cern.ch

Primary author

Warren Andrews (Univ. of California San Diego (US))

Presentation Materials